Just got back from a truck pull. I use my Dmax to haul my pulling truck around. Total weight is probably 13,000# including the truck and trailer. Tonight I travelled about 90 miles to a pull. Recently I have been having an issue while towing heavy. It happened about 5 different times tonight and once about 2 weeks ago when going to another pull. Anyways I will be cruising down the highway and the truck just starts to lose power. It doesnt have enough power to accelerate and barely has enough power to maintain speed on flat ground. The truck just feels sick. Tonight one time when it happened I put the truck into neutral and revved it some. 2000 rpms is all it would do. Each time I end up having to pull over to the shoulder, turn off the truck and turn it back on and all is fine. Whats weird is I get no CELs or no messages on the DIC. I just have to turn the truck off for a second, then turn it back on and everything is normal, until it happens again several miles later. I have tried to replicate the problem but there doesnt seem to be a rhyme or reason as to why it happens. It just does it randomly. The fuel filter, oil, and trans fluid/spin-on filter was changed about 5000 miles ago. Rail pressure is spot on what it is supposed to be, trans and coolant temps are fine. Both times it has happened I have had the Edge Evo Race on level 1. Tonight after it had happened several times I decided to put the truck back to stock to see if it changed anything. I pulled over in a gas station parking lot and returned the truck back to stock. Pulled back out and drove 60 miles the rest of the way home with no issues.
Does anyone have any idea what it might be, or have you had simliar experiences?

Anyone?

Rail pressure issues shim it. I beleive that may be it.

Just got back from a truck pull. I use my Dmax to haul my pulling truck around. Total weight is probably 13,000# including the truck and trailer. Tonight I travelled about 90 miles to a pull. Recently I have been having an issue while towing heavy. It happened about 5 different times tonight and once about 2 weeks ago when going to another pull. Anyways I will be cruising down the highway and the truck just starts to lose power. It doesnt have enough power to accelerate and barely has enough power to maintain speed on flat ground. The truck just feels sick. Tonight one time when it happened I put the truck into neutral and revved it some. 2000 rpms is all it would do. Each time I end up having to pull over to the shoulder, turn off the truck and turn it back on and all is fine. Whats weird is I get no CELs or no messages on the DIC. I just have to turn the truck off for a second, then turn it back on and everything is normal, until it happens again several miles later. I have tried to replicate the problem but there doesnt seem to be a rhyme or reason as to why it happens. It just does it randomly. The fuel filter, oil, and trans fluid/spin-on filter was changed about 5000 miles ago. Rail pressure is spot on what it is supposed to be, trans and coolant temps are fine. Both times it has happened I have had the Edge Evo Race on level 1. Tonight after it had happened several times I decided to put the truck back to stock to see if it changed anything. I pulled over in a gas station parking lot and returned the truck back to stock. Pulled back out and drove 60 miles the rest of the way home with no issues.
Does anyone have any idea what it might be, or have you had simliar experiences?


Doesn't sound normal, I pull similar weight with my PPE on level 2 over 600 miles round trip through various grades and never experienced any power loss.

Rail pressure issues shim it. I beleive that may be it.


I don't think lower levels such as level one would require enough fuel demand to need a fuel rail shim.

I could see if he was to run into this problem on high HP / Fuel demand tunes this might be an issue...
Maybe wouldn't hurt to have rail shimed just to be safe...

I have not heard of that nor that issue with the evo. Sounds almost like a fuel related issue but hard to say. If it was the evo it would deffinitly pull a code.

Hmmm. Maybe I got a hold of some bad fuel. I bought a new fuel filter today and am going to change it tonight. I will cut the old one apart and inspect it. Also bought some additive for the tank.

STANADYNE year round...

I am having similar issues where my truck after idleing while let's say putting diesel it doesn't trip a code but I can floor it and it barely moves after leaving the gas station. I go into the insight and clear a code that isn't there and it's fixed. I heard of has to do with shimming the fuel rail. Doesn't make sence to me but when iam messing around on the freeway it does the same thing.

Do me a favor both TeddyBear and Shaun, clean you MAF sensor and see if that is causing the problems. Might be a shot in the dark, but it could be the issue.

i have heard of oil from oiled type cloth filter getting on airfilter sensor and causing problems also...

Do me a favor both TeddyBear and Shaun, clean you MAF sensor and see if that is causing the problems. Might be a shot in the dark, but it could be the issue.

The MAF sensor in these trucks it just a small rectangular stick type thing that goes into the intake tube, and not a screen, correct?

On the LBZ and LMM they are. Unsure on previous LB7 and LLYs.

Brian

i have a simular problem except mine throws a code299 turbo underboast reducing engine power. clear the code & it might come back in 1 to 10 miles or it might be good for the rest of the day. if i return the truck to stock it has never throwin this code without other codes being thowin eg:filter freeze mass air sensor or map sensor code.
i think the could be comunication problem with the truck computer & the edge evo. as mine did not do it when i frist installed it. but started to do after i upgraded the unit around the april/09. only when pulling a heavy load like a 16000# trailer very fustrating, now when i pull i set the truck back to stock. no more reduced engine prower but the reason i bought the evo. was for pulling the trailer now i just use when empty. till edge can come with a fix.

I agree with the communication issue.. I tried the evo race and was very inconsistant tune, never felt right. with the ppe i know exactly what to expect throughout any amount of boost or speed.

Changed the fuel filter, got a fresh tank of diesel, and added some Diesel Power fuel system treatment. I went to a pull about 25 minutes away last night and it happened again. It only happened once after a hard pull on a steep hill. The way back home was fine with no issues. I have been monitoring Desired Fuel Rail Pressure, and Actual Fuel Rail Pressure and they are both pretty much identical. I wonder if it has anything to do with my S&B intake? It doesnt make any sense to me though that it doesnt throw any codes? Just have to pull over, turn it off, and turn it back on and its fine.

if it does not do it stock or with another brand tuner, then it is a problem somewhere with the edge tuning.

being that there are no codes makes it difficult to troubleshoot....

Just out of curiosity, when was the last time you updated the EVO Race? I just installed mine, newest update said 7/1/09. I've not had any issues, but I haven't towed yet. The smoothed out shifting compared to the Quad is amazing so far! Chris

if it does not do it stock or with another brand tuner, then it is a problem somewhere with the edge tuning.

being that there are no codes makes it difficult to troubleshoot....

Exactly. The no trouble codes is what has me stumped. It feels exactly like it did one time when my fuel filter got clogged. It threw a low rail pressure code though so I knew what was the problem. At that time I was running the Quadzilla.

i have a brand new truck that does the same thing with the edge evolution i believe its because exhaust gas temp gets too high

I've had the same problem and each time my EGTs were high. It has been suggested to me to easy into the throttle when pulling out with a load so as not to increase the EGTs too quickly. If the EGTs remain greater than 1350+ for longer than 5-10 secs the truck will go into limp mode.

Too bad the turbo brake option isn't available on the lvl 1 tuning. Only "real" reason I got this tuner and sold my Quad was due to this option. But having high EGT's with more power is an issue. The Quad set on the economy setting, probably not much more than 20-30hp over stock pulled my camper fine, but I want the extra ability to stop it! Can't be too hard to just program lvl 1 for towing "heavy" loads, say over 10K lbs, with the turbobrake feature and lvl 2 towing less than 10K, something along those lines. Hope this issue is resolved soon. I'm not going camping for a few more weeks, should give the issue time to be resolved. Absolutely loving the tuning over the Quad so far, no comparisons, just want this issue resolved. Chris

Too bad the turbo brake option isn't available on the lvl 1 tuning. Only "real" reason I got this tuner and sold my Quad was due to this option. But having high EGT's with more power is an issue. The Quad set on the economy setting, probably not much more than 20-30hp over stock pulled my camper fine, but I want the extra ability to stop it! Can't be too hard to just program lvl 1 for towing "heavy" loads, say over 10K lbs, with the turbobrake feature and lvl 2 towing less than 10K, something along those lines. Hope this issue is resolved soon. I'm not going camping for a few more weeks, should give the issue time to be resolved. Absolutely loving the tuning over the Quad so far, no comparisons, just want this issue resolved. Chris
Maybe we can get Buck to add the turbobrake to level 1 also... I understand why they might not want it added to level 3, but maybe a lower level would be an option... Personally, I would like it to be just a tuning options for use to say yes I want the turbo brake on this level.. Like we do for tire size...

Maybe we can get Buck to add the turbobrake to level 1 also... I understand why they might not want it added to level 3, but maybe a lower level would be an option... Personally, I would like it to be just a tuning options for use to say yes I want the turbo brake on this level.. Like we do for tire size...

Couldn't agree more, that would a sweet deal if possible. Just as you suggest, somehow get the option to turn it off or on with the customize section like for tires in level 1/2, good place IMO to have it. Chris

Just got back from a truck pull. I use my Dmax to haul my pulling truck around. Total weight is probably 13,000# including the truck and trailer. Tonight I travelled about 90 miles to a pull. Recently I have been having an issue while towing heavy. It happened about 5 different times tonight and once about 2 weeks ago when going to another pull. Anyways I will be cruising down the highway and the truck just starts to lose power. It doesnt have enough power to accelerate and barely has enough power to maintain speed on flat ground. The truck just feels sick. Tonight one time when it happened I put the truck into neutral and revved it some. 2000 rpms is all it would do. Each time I end up having to pull over to the shoulder, turn off the truck and turn it back on and all is fine. Whats weird is I get no CELs or no messages on the DIC. I just have to turn the truck off for a second, then turn it back on and everything is normal, until it happens again several miles later. I have tried to replicate the problem but there doesnt seem to be a rhyme or reason as to why it happens. It just does it randomly. The fuel filter, oil, and trans fluid/spin-on filter was changed about 5000 miles ago. Rail pressure is spot on what it is supposed to be, trans and coolant temps are fine. Both times it has happened I have had the Edge Evo Race on level 1. Tonight after it had happened several times I decided to put the truck back to stock to see if it changed anything. I pulled over in a gas station parking lot and returned the truck back to stock. Pulled back out and drove 60 miles the rest of the way home with no issues.
Does anyone have any idea what it might be, or have you had simliar experiences?
my truck did the same thing the other day and it only has 500 miles on it,local performance guy told me it was because egt got too high

my truck did the same thing the other day and it only has 500 miles on it,local performance guy told me it was because egt got too high

Is your truck bone stock?

if the egt got too hot, and that was the reason for power down, wouldn't there be some sort of notification to the driver of this senario?

I've had the same problem and each time my EGTs were high. It has been suggested to me to easy into the throttle when pulling out with a load so as not to increase the EGTs too quickly. If the EGTs remain greater than 1350+ for longer than 5-10 secs the truck will go into limp mode.

Do you have the EGT probe installed and are you watching this as your towing?

Does this version of the EDGE let you set your limits like the older version?
On my LLY I had it set to start defueling after 1300 and it would alway set off the alarm on the unit. It never once went into limp mode except for the time I forgot it was on level 3. Whoops!

Do you have the EGT probe installed and are you watching this as your towing?

Does this version of the EDGE let you set your limits like the older version?
On my LLY I had it set to start defueling after 1300 and it would alway set off the alarm on the unit. It never once went into limp mode except for the time I forgot it was on level 3. Whoops!

I've not seen anything with defueling once a certain EGT temp has been reached. I know on level 3 last night, merging into traffic on the interstate, throttle at 60% according to the PID, EGT's went up to 1450 and started to flash at me, only did it for a second or so, but caught my eye. Makes me wonder what my EGT's were and how long it stayed high with my Quad on the 90hp setting. :eek: Chris

I think one thing most people are forgetting is that this is a Race tuner, it was never designed with towing in mind. So we're all taking a chance with it.

I remember when I first inquired about which level would be safe for towing, I was informed by Edge of the above and that I should ask others what their experiences were with towing as they couldn't make a recommendation.

Granted I'm in the same boat as most, as I use it for daily driving and for towing, but I just wanted to throw that out there.

I have a probe installed so I can keep watch on the EGT's and I can say that even on level 2, and I'm only pulling 8k, they can get up there rather quickly if you don't keep a close eye on them and change gears accordingly.

I personally plan on keeping it on level 1 from here on out while towing. If I had the extra money, I'd buy a license for EFI live and have one of the guys in my area throw their tow tune on for those weeks I go camping.

It is Labeled a Race tuner(offroad use only) to keep the feds off of Edges back. If they labeled it a "on-road" tuner w/ dpf delete capabilities then the feds could fine and close down edge products. So it isn't necessarily a "race" tuner, only labeled that for legal purposes. Somebody correct me if I am wrong.

It is Labeled a Race tuner(offroad use only) to keep the feds off of Edges back. If they labeled it a "on-road" tuner w/ dpf delete capabilities then the feds could fine and close down edge products. So it isn't necessarily a "race" tuner, only labeled that for legal purposes. Somebody correct me if I am wrong.

That is the reason for a "race" name added to the Evolution part. Legal issues, also why there are disclaimers for not being allowed for street use.
I guess I will be towing on level one without the turbobrake feature:mad::(! Even a stock tune (like Quad's) with the turbobrake feature added in, would be nice. That way I wouldn't have lights on my dash, but also lower EGT's. Chris

So does the "Race" version not do back downs since it is a loaded program?

Maybe thats where all the issues are at. I know with my Attitude and Juice on my LLY i could set the cruise and forget about it. The EGDE controller would take over and start backing down when things got to hot thus keeping the truck from limping. It makes perfect sence that with no back down and the loads they are trying to pull, its limping the truck.

Neither of the evolutions limit power or back downwhen the limits of the truck are reached. All they do is reprogram the ecm and tell it to have a good time

There are back down features on the Factory PCM. Example: When ECT Reaches a certain temp it will start to reduce power. There are many torque mulitiplication tables to reduce torqe and power in a stock PCM. The Juice with ***. will do what you want as you preset the Attituide to back down. The race evo does have alot of the back down setting removed becuase it is a RACE Programmer.

Buck can you give us examples of what is removed with the race

Buck can you give us examples of what is removed with the race
There are alot of them but just a few are, EGR, Torque limits raised and Baro Limits and much more.

God im glad i read this stuff. I was already to slap the "Race" in my truck thinking it still had all the backdown protection of the *** with Juice. With my trailer being 16k plus, the temp out side being 112-115 alone, I would have limped my truck faster then all get out trying to pull up into the mountains. My LLY would see 100% backdown all the time on one of the 6mile long steep grades.

I guess no "RACE" for me. :(

Interesting.....

God im glad i read this stuff. I was already to slap the "Race" in my truck thinking it still had all the backdown protection of the *** with Juice. With my trailer being 16k plus, the temp out side being 112-115 alone, I would have limped my truck faster then all get out trying to pull up into the mountains. My LLY would see 100% backdown all the time on one of the 6mile long steep grades.

I guess no "RACE" for me. :(

If you run the tow level 2 you will still have all your factory PCM back down features. You wont limp the truck in level 2 towing.

you should not have a problem running level 1-3 with no problem. Level 4 will be ok if you drive with common sense and let the converter lock up before hot rodding you will be ok in that level also.

If you run the tow level 2 you will still have all your factory PCM back down features. You wont limp the truck in level 2 towing.
I love level 2 loaded or unloaded.. The juice does not have the turbo brake that this race evolution does also...

If you run the tow level 2 you will still have all your factory PCM back down features. You wont limp the truck in level 2 towing.

I would have to second that as that has been my experience. Most here are familiar with my towing testing and posts. If you are getting hot coolant temps and the PCM is backing down...then I would address those issues. The term "limp" has been thrown around very loosely lately and I think some are getting the wrong idea. There are several things that can actually "limp" a truck...but they are mostly related to the allison.

The duramax runs on the ragged edge of running hotter (coolant) from the factory than most would like or care to admit. It has been beat to death on this forum for some time but has lessened lately with the LBZ's. I am starting to see more mention of it with the LMM's though.

I am running an LBZ, but If I had an LMM I would make certain that I am getting cool air in...and ALL the hot air out that I can. No matter what it takes. And, not all intakes and exhausts are created equal. Additives to the coolant may have some merrit as well. However.....stay away from electric fans, that is a recipie for disaster.

Eric

I have towed with level 1 and level 2, and experienced the same "limp mode", which is what I described in my first post of the thread. What is stumping me is that there is no codes, or messages that appear on the DIC, but something is definitely happening. The truck just all the sudden has no power until I pull over, turn the truck off, then turn it back on. I thought it might be bad fuel, but with a fresh tank of diesel, a new fuel filter, and some diesel power fuel system treatment, nothing changed.

Is your water or transmission temperature going into the red overheat zone?

I have towed with level 1 and level 2, and experienced the same "limp mode", which is what I described in my first post of the thread. What is stumping me is that there is no codes, or messages that appear on the DIC, but something is definitely happening. The truck just all the sudden has no power until I pull over, turn the truck off, then turn it back on. I thought it might be bad fuel, but with a fresh tank of diesel, a new fuel filter, and some diesel power fuel system treatment, nothing changed.

See thats what doesnt make sense to me. With the LLY i tried to tow on level 2 of the *** with Juice (plus the intake and turbo back exhaust) and anytime I would hit the steep grade or put my foot into it for passing, it would limp the truck. If i left it on stage 1 it would run all day with no issue.

So how long before the truck limps/ goes into reduced power mode with the Race controler? So your saying the truck has a backdown feature built into it?

Have you watch your Rail pressures To make sure your not going to a fuel limp?

Are you saying that since no codes were thrown, temps were within "normal" limits, maybe starving the engine of fuel has caused some of these trucks to reduce their power? So by lowering the tune from level 2 to 1, they have reduced the amount of diesel needed for the tune, which would solve the starving diesel/rail pressure and the "reduced" power while towing? Maybe I will add the desired/actual fuel to the PID screen when towing, along with engine temp/EGT's. It would be nice to know if anyone that has a lift pump to get more fuel in has had a similar issue while towing with the Evo Race. Can't wait for the CTS, seeing 8 PIDs would be nice:D. Hurry, get the CTS out Buck!!!;) I'm getting some things together for a "self" analysis of the Evo Race tuner, so far, if the #'s hold true over a few fillups, great tuning from EDGE!

Just a thought from another post a few here had, how hard would it be to have 2 tow tunes, level 1 and 2, but rated for different weights, say under 10K lbs for level 2, over 10K lbs for level 1. Solve the issue of rail pressure dropping? Or turning the Turbobrake feature on and off for level 1 and 2? I don't know, just throwing out some ideas! Again, awesome product! Chris

What is the draw back of having the brake feature in other tune levels?
It might be nice when running thru the mountains with a lighter load.
I love my EVO RACE.

What is the draw back of having the brake feature in other tune levels?
It might be nice when running thru the mountains with a lighter load.
I love my EVO RACE.


Can't think of any negatives, but I'm not an engineer by any stretch of the imagination! If you could turn the turbobrake on and off, like when you choose if your DPF is still on when programming, one more option for turbobrake feature or no turbobrake feature. Maybe Buck will chime in here on that one. Chris

I had this happen once a few weeks ago towing heavy with evo on 3 but I had "Engine Power Reduced" come up on the DIC. Now I tow on level 1 and it hasn't happened again.

Nice to know it hasn't happened since you've been on level 1, but I really would like to use the level 2 for towing due to the turbobrake feature. If I wanted level one power for towing, I'd have just kept my Quad!:rolleyes: Anyone else having any issues towing on level 2?? It seems it has to be either EGT's getting too hot or fuel rail pressure dropping too low.

Dutchie, were you towing up a hill or anything when it happened? Chris

I wouldn't want it on level 1 unless I could have the option to turn it off or on.

After talking with a local dealers technician, I'm not sure I want to use it at all. I definitely want to look into it some more before spreading bad information though.

I wouldn't want it on level 1 unless I could have the option to turn it off or on.

After talking with a local dealers technician, I'm not sure I want to use it at all. I definitely want to look into it some more before spreading bad information though.

I love the turbo brake feature and use it frequently. I dont usually put too much stock in what any of the dealer techs have to say.

Ok, well I visited a local dealer that sells only diesel trucks, from the GMC 2500 up to Peterbilt semi trucks, all they deal in is diesels. Their not your convential GM or Chevy dealership, so while I agree with what you say, I take what these guys have to say a little more seriously.

Apon picking up my spin on tranny filters, the shop was slow on a Saturday afternoon, so I was chatting up some of the guys there. We got to talking about the emissions on the new trucks and warranties and how guys seem to buy them and then immediately start putting stuff on them or taking them off. They were telling me of a guy recently who bought a truck and in less than 500 miles put a tuner on and some Banks stuff and then was having issues with his truck.

Long story short, they denied his warranty claim because of the tuner, he had to pay out of his pocket for all repairs and the reason for his problems was due to a tuner that implemented a turbo brake feature. They ended up replacing the turbo. The particular fellow I talked with said that the turbo in these trucks wasn't designed for such a feature.

Now I'm no diesel mechanic, nor was I present for the said issue, I'm just reverberating what was said.

I should say that I like the feature as well, but after hearing that, I'm erring on the side of caution until I can find out if this is actually true or not.

I wonder what turbo they put in the 4500 truck then?... I believe they have the turbo brake feature designed into the stock truck...

Sounds interesting. I have wondered if the turbo brake feature will have any effects on the longevity of the turbo.

I think we are all aware though that when we start modifying our trucks with aftermarket tuners, exhaust, intakes, turbos, etc., that we may void the warranty and also be required to replace parts that fail. Gotta pay to play!

Ok, well I visited a local dealer that sells only diesel trucks, from the GMC 2500 up to Peterbilt semi trucks, all they deal in is diesels. Their not your convential GM or Chevy dealership, so while I agree with what you say, I take what these guys have to say a little more seriously.

Apon picking up my spin on tranny filters, the shop was slow on a Saturday afternoon, so I was chatting up some of the guys there. We got to talking about the emissions on the new trucks and warranties and how guys seem to buy them and then immediately start putting stuff on them or taking them off. They were telling me of a guy recently who bought a truck and in less than 500 miles put a tuner on and some Banks stuff and then was having issues with his truck.

Long story short, they denied his warranty claim because of the tuner, he had to pay out of his pocket for all repairs and the reason for his problems was due to a tuner that implemented a turbo brake feature. They ended up replacing the turbo. The particular fellow I talked with said that the turbo in these trucks wasn't designed for such a feature.

Now I'm no diesel mechanic, nor was I present for the said issue, I'm just reverberating what was said.

I should say that I like the feature as well, but after hearing that, I'm erring on the side of caution until I can find out if this is actually true or not.

May want to do more research on how the VGT turbo works. I have no clue what Banks is doing on there products but i know its way diffrent than the way I do Edge From the way i hear they connect. Im curious to know why they think that Closing the vanes off on a turbo to create backpressure in the engine is bad. I assuming that if closing the vanes at 0% TPS then Jake Brakes on large semis are bad for them also right? Im not doubting your concern. But I just dont think they would use jake brakes and exhuast brakes on the kodiaks and semis from there manufacture if they were going to harm the engine. Just my 2cents of rambling sorry.

Kodiak Turbo is exact same spec as in the pickup truck i have tuned alot of the kodiaks and reverse engineered the pcm. There is a button feature to activate the brake. instead i do it electronic upon tps and Other perameters.

Doesn't Dodge use a similar turbo to the D-max's? Variable vane, right? Brother in laws Dodge 6.7 has a button to turn off or on a turbo brake feature (from what he told me). Just wondering. Chris

Yes the 6.7 does have the Vane turbo also

Thought so, not sure if it's a true turbobrake, but it sure sounds like it is. He's been using it not for almost 30K miles. Never an issue. Buck, any word on potential usage of the turbobrake feature on the level one tune or ability to turn it off and on with different "custom" settings? Just wondering. I haven't towed heavy with the Race tuner yet, will be next weekend, just wanting to know what you think could be going on. Chris

I really havent had time to mess with any updates. We are tring to finish the CTS and CS were all tring our best to have it done asap.

Sounds good, just thought I'd ask about any updates!:D I can't wait for the CS/CTS to come out, looking forward to keeping an eye on more PID's! Chris

Well it happened to me again last night pulling the same load. Cleaned the MAF sensor today and Im gonna see if that makes any difference. Hopefully it does :banghead: :eyecrazy:

Cleaned my MAF sensor today. It did fine on the way to the pull, but it did it limped again on the way home. Actual Rail pressure sticks right with the Desired Rail Pressure. This is getting old :banghead: :duh: Anyone have any suggestions? Could it be anything to do with my S&B intake?

I don't have a suggestion other then in the four Duramax's I have had I have never touched the intake because the stock unit flow's good enough for the power I add to it and I have not really read any good benefits from it other then to many having issues.

Im not sure. I never had a problem with the PPE or Quad while running the S&B intake, but Im full aware that they are all three completely different tuners. I dont think theres a problem at all with the intake or my MAF. Perhaps since the intake is less restrictive, the MAF will see higher readings and its causing a conflict somewhere with the tuning?

I would like to help you fix it. If you can call me tommorrow and Explain to me in detail whats its doing and ill try to look at the tuning and see if it has anything to do with it. Grab your serial on the device and fusion email. I will also need to know any dtc codes. Call me 801-337-2178 leave me a message if i dont answer i will return your call. Im on the dyno alot.

Thanks Buck! I will give you a call.

Cleaned my MAF sensor today. It did fine on the way to the pull, but it did it limped again on the way home. Actual Rail pressure sticks right with the Desired Rail Pressure. This is getting old :banghead: :duh: Anyone have any suggestions? Could it be anything to do with my S&B intake?

I know I cannot run level 2 and tow either. My truck goes into reduced power mode and I have to pull over. I then have to cycle the key and try and get somewhere safe to put it on level 1. On level 1 it does not have a problem at all, but I sure would like to have the exhaust brake feature. This is on my 09 trucks. I am going to try and get ahold of edge today and see what they can/will do about this problem. I just got the unit last thursday and towed for the first time Sat.

I will be towing this weekend. I am going to start out in level 2 and I have a couple pretty good hills to go up. Last time on these hills, the temp gauge rose off the 210 mark for the first time ever while towing. All this before the EVO and gauges, Quad tuner was on the 50hp setting. Good luck TBear! Chris

Im not sure. I never had a problem with the PPE or Quad while running the S&B intake, but Im full aware that they are all three completely different tuners. I dont think theres a problem at all with the intake or my MAF. Perhaps since the intake is less restrictive, the MAF will see higher readings and its causing a conflict somewhere with the tuning?

I just towed heavy this last weekend with PPE on level 2 and no powerdowns or problems.

I just got back from holidays out to BC for a week. I pulled my fifth wheel on level 2 on the way out and lost count of the reduced power happenings. So I put the tuner on level 1 for the return trip with zero problems. I really like the power and turbo brake on 2 but the frequent reduced powers suck. I hope that edge gets this fixed soon or gets a turbo brake on level one.

Also there seemed to be no ryhme or reason to when the engine goes into reduced power as it happened pulling hills heavy or even on the flat cruising. My EGTs were also lower on level 2 than 1 not sure why.

I just got back from holidays out to BC for a week. I pulled my fifth wheel on level 2 on the way out and lost count of the reduced power happenings. So I put the tuner on level 1 for the return trip with zero problems. I really like the power and turbo brake on 2 but the frequent reduced powers suck. I hope that edge gets this fixed soon or gets a turbo brake on level one.

Also there seemed to be no ryhme or reason to when the engine goes into reduced power as it happened pulling hills heavy or even on the flat cruising. My EGTs were also lower on level 2 than 1 not sure why.

If you have not already called Edge then give them a call and explain your situations.
They all are pretty good on trying to solve issues, my main contact person at Edge is Jared Scholes, see if you can talk to him.

Me personally, I would not tow on a level higher than the lowest power setting.
Level 2 gives you a little more fuel and if your not pushing it hard
the egts could be just a little cooler.
But as soon as you push it the temps will get higher.
Good Luck.

I will look into the level 2 reduce power but its hard to duplicate something with no lights or warning of some sign to determine what is cuasing it. I will cruise threw the maps and see what I find.
the reason level 1 is higher egt is becuase the way Tune the maps to try to increase mileage.

Im sure it just has to do with the weight. Im sure anything under 6.5k you can run 2 just fine. I think it even said that in my old attitude with juice manual. Maybe edge will add the turbo break feature to level 1.

I think it will happen in the future, but right now they are working full time on getting the new CTS/CS out perfect... They are dare close to being perfect also...:thumb:

I will talk to management about added the brake feature in level 1. I will also look into the reduce power on the level 2.

Thanks Buck that sounds good. Gotta love this kind of service.

Im actually got a go ahead to fix the level 2 for the reduce power just a minute ago so i will start on it right now. I may be pulled here and there but i will need a few guys to test it for me to confirm that it works and does not reduce power. PM me your Fusion email and serial i will target few guys to test this for me before i release it as a update.

Im sure it just has to do with the weight. Im sure anything under 6.5k you can run 2 just fine. I think it even said that in my old attitude with juice manual. Maybe edge will add the turbo break feature to level 1.


I just drove over 4.5hrs in level 2, up and down some 1 mile long hills, 14K lbs. never an issue, just a 113 PID error code, which is not a big deal. Mods I have are in my sig. Maybe I just got lucky this time.:) Glad to see Buck working on this, as well as everything else coming down the pipe from Edge. Chris

Ok guys email me if you want to try this cal i got it ready and will target you device.

I'm not having the reduced power issue, but I'm curious as to what you changed in this beta cal and if it might help the high temps I keep seeing.

I'm not having the reduced power issue, but I'm curious as to what you changed in this beta cal and if it might help the high temps I keep seeing.

I know what you are saying. When I run level 3 I can hit 1350 on the EGT's pretty easy. When I go to level 4 on WOT runs (empty) I hit over 1450 degrees.

I also run a Kennedy Custom performance\tow tune which is putting out about 80 HP, pretty much the same as level 3 on the race evo. On WOT runs I have never gone over 1250 degrees. I do notice my boost runs about 2-3psi higher all the time which I think really helps with the EGT's. During normal cruising the Kennedy tune runs about 150 degrees cooler all the time. I would run the evo more but don't like to run it that hot

I have my EGR blocked, DPF removed with Turbo back exhaust with a stock intake for my mods.

I know what you are saying. When I run level 3 I can hit 1350 on the EGT's pretty easy. When I go to level 4 on WOT runs (empty) I hit over 1450 degrees.

I also run a Kennedy Custom performance\tow tune which is putting out about 80 HP, pretty much the same as level 3 on the race evo. On WOT runs I have never gone over 1250 degrees. I do notice my boost runs about 2-3psi higher all the time which I think really helps with the EGT's. During normal cruising the Kennedy tune runs about 150 degrees cooler all the time. I would run the evo more but don't like to run it that hot

I have my EGR blocked, DPF removed with Turbo back exhaust with a stock intake for my mods.

if your looking for a custom tuning like your PCM you have. I can do that for you. But just having to build tunes to work on all vehicles and across the country is tad tougher than a specific custom one off tune.

Im actually got a go ahead to fix the level 2 for the reduce power just a minute ago so i will start on it right now. I may be pulled here and there but i will need a few guys to test it for me to confirm that it works and does not reduce power. PM me your Fusion email and serial i will target few guys to test this for me before i release it as a update.


Sooo, can you elaborate on what you did or in laymen terms, what we would see? Or is this a super secret Edge thing that you'd have to kill us if you told us about? :D

I know what you are saying. When I run level 3 I can hit 1350 on the EGT's pretty easy. When I go to level 4 on WOT runs (empty) I hit over 1450 degrees.

I also run a Kennedy Custom performance\tow tune which is putting out about 80 HP, pretty much the same as level 3 on the race evo. On WOT runs I have never gone over 1250 degrees. I do notice my boost runs about 2-3psi higher all the time which I think really helps with the EGT's. During normal cruising the Kennedy tune runs about 150 degrees cooler all the time. I would run the evo more but don't like to run it that hot

I have my EGR blocked, DPF removed with Turbo back exhaust with a stock intake for my mods.

What's your cruising EGT's on level 3 (mine run at about 600*), I know you said Kennedy's tune is about 150* cooler. My EGT's dropped 50-75* cooler after opening up the fender allowing more air into the intake, I also hear the whistle of the turbo alot more. When I first got the Edge Race , on level 4 I got to the 1450* red flashing screen at WOT getting onto the interstate, since this mod, same ramp at WOT, only get to about 1375*. Just thought I'd share that with everyone. Chris

How did you modify the fender? any pic's?

What's your cruising EGT's on level 3 (mine run at about 600*), I know you said Kennedy's tune is about 150* cooler. My EGT's dropped 50-75* cooler after opening up the fender allowing more air into the intake, I also hear the whistle of the turbo alot more. When I first got the Edge Race , on level 4 I got to the 1450* red flashing screen at WOT getting onto the interstate, since this mod, same ramp at WOT, only get to about 1375*. Just thought I'd share that with everyone. Chris

On level 3, cruising speeds the EGT's are not as far off, maybe about 50*. I see the bigger difference when accelerating. When shifting between 2000 and 2500 rpms's I see the 150* difference. At WOT throttle it is the largest difference of around 200*. I know altitude makes difference as well, which I am at 5000ft.

On level 4 I got the same red flash on the screen of being at 1450* or higher. It was not a long period of time but the red flash gets your attention. I know I could raise it to go off higher but I think 1450* is high enough.

The Race Evo tunes are very good, the best I have seen from a programmer.

What fender mod did you do?

How did you modify the fender? any pic's?
Here is the orignal link for the mod.
http://www.dieselplace.com/forum/showthread.php?t=192000&highlight=LMM+Air+Box+Mod
This mod does help with allowing more fresh air to be available on demand
rather than having to always pull air thru the restrictive opening.

http://www.dieselplace.com/forum/garageimage.php?do=thumb&p=94726&d=1248118281 (http://www.dieselplace.com/forum/garageimage.php?do=full&p=94726&d=1248118281)http://www.dieselplace.com/forum/garageimage.php?do=thumb&p=94725&d=1248118249 (http://www.dieselplace.com/forum/garageimage.php?do=full&p=94725&d=1248118249) Tools used http://www.dieselplace.com/forum/garageimage.php?do=thumb&p=94724&d=1248118207 (http://www.dieselplace.com/forum/garageimage.php?do=full&p=94724&d=1248118207)

I first started off using a 3/4" hole saw and drilled 6 holes in the center piece.
1 week later I finished off by cutting out the complete section.
http://www.dieselplace.com/forum/garageimage.php?do=thumb&p=94620&d=1247979699 (http://www.dieselplace.com/forum/garageimage.php?do=full&p=94620&d=1247979699)http://www.dieselplace.com/forum/garageimage.php?do=thumb&p=95348&d=1249097643 (http://www.dieselplace.com/forum/garageimage.php?do=full&p=95348&d=1249097643)

I then took this up a notch by wraping the airfilter box with foil insulation.
The only way you would notice any gain would be with something like the Edge Insight to monitor the AAT & IAT temps.
In cool Arizona it showed by doing this it did help just a little on the temps I am monitoring, the AAT & IAT temps.
But would this be worth the time(2 hrs)and cost(I already had the insulation)with doing this????
I am not going to suggest that this is something that just needs to be done.
I have done this and it will be staying this way.:D
http://www.dieselplace.com/forum/garageimage.php?do=thumb&p=95538&d=1249403335 (http://www.dieselplace.com/forum/garageimage.php?do=full&p=95538&d=1249403335)http://www.dieselplace.com/forum/garageimage.php?do=thumb&p=95888&d=1249925810 (http://www.dieselplace.com/forum/garageimage.php?do=full&p=95888&d=1249925810)

Perfect pic and disceription
Thanks

Nicely done......

Eric

Thanks Guy`s,
From what I have read here on D.P., there has been at least one person that had a code when doing the airbox mod.
Did he do something wrong??? I don`t know ????
If you do the mod, just remember to plug back in the MAF sensor before you start the engine.
One time on another truck I had forgot, that set a code, I freaked out for a minute, then remembered and plugged it back in, cleared the code and all was happy.

Can add me to the list of people getting "Reduced Engine Power" DIC message. Was on a pretty long hill, 4+ miles, and the last mile of it got to around an 8% grade. 3/4 of the way up it, truck went into that mode and the max I could do was 15mph. Temps all seemed fine. 1250ish on the EGT's, 217 ECT and 172 TFT. Pulled over, let it idle for 5 minutes, shut it off and restarted it. All was well after that point. No problems on the way home either. Total weight on the way over was 16,100. Weight on the way back was 15,500.

That was my last trip of the year too. Has anyone that has had this message got Buck's updated cal? Did it fix the issue?

I'm planning on calling tech tomorrow to discuss the issue, but thought I'd check here first.

Can add me to the list of people getting "Reduced Engine Power" DIC message. Was on a pretty long hill, 4+ miles, and the last mile of it got to around an 8% grade. 3/4 of the way up it, truck went into that mode and the max I could do was 15mph. Temps all seemed fine. 1250ish on the EGT's, 217 ECT and 172 TFT. Pulled over, let it idle for 5 minutes, shut it off and restarted it. All was well after that point. No problems on the way home either. Total weight on the way over was 16,100. Weight on the way back was 15,500.

That was my last trip of the year too. Has anyone that has had this message got Buck's updated cal? Did it fix the issue?

I'm planning on calling tech tomorrow to discuss the issue, but thought I'd check here first.


I haven't heard anyone post anything back that had issues with the Level 2 towing tune after the update Buck was trying out. Not sure if I'm going camping at all the rest of the year, and I have not had any issue with the tuner, so I'm no help. Maybe someone here that tried the update will let us know. Chris

Can add me to the list of people getting "Reduced Engine Power" DIC message. Was on a pretty long hill, 4+ miles, and the last mile of it got to around an 8% grade. 3/4 of the way up it, truck went into that mode and the max I could do was 15mph. Temps all seemed fine. 1250ish on the EGT's, 217 ECT and 172 TFT. Pulled over, let it idle for 5 minutes, shut it off and restarted it. All was well after that point. No problems on the way home either. Total weight on the way over was 16,100. Weight on the way back was 15,500.

That was my last trip of the year too. Has anyone that has had this message got Buck's updated cal? Did it fix the issue?

I'm planning on calling tech tomorrow to discuss the issue, but thought I'd check here first.

Did it actually come up with a message on the DIC or throw any codes?

Came up with the message on the DIC, but no codes thrown.

Your issue sounds similar to mine, but I have never gotten a CEL or DIC message.

I have the new tune that Buck has made but I have yet to have towed anything so I can't say if it has fixed the pronlem. I am pulling my trailer this weekend so I will see what it does then. I'm not pulling very far but there is a couple of big hills so I will see if I can make it repeat the problem.

Came up with the message on the DIC, but no codes thrown.


Yep mine does the same thing. I got to the point where I would just shift the tranny into neutral and cycle the key and away I would go till the next time.

I think it will happen in the future, but right now they are working full time on getting the new CTS/CS out perfect... They are dare close to being perfect also...:thumb:

Are the CTS EVO RACE tunes goign to be the exact same as the EVO RACE tunes? and are we going to have these same issues?

Are the CTS EVO RACE tunes goign to be the exact same as the EVO RACE tunes? and are we going to have these same issues?
The evolution race & the cs/cts race have the same tunes just in a pretty package...

The issue you are talking about.. Did you get on the test list with Buck?... Buck had some people trying the new tunes to see if that fixed it..

The evolution race & the cs/cts race have the same tunes just in a pretty package...

The issue you are talking about.. Did you get on the test list with Buck?... Buck had some people trying the new tunes to see if that fixed it..


Yes I did get on the test list with Buck but unfortunatly haven't had a chance to try it yet. Will report back after the weekend on how it is working.

Yes I did get on the test list with Buck but unfortunatly haven't had a chance to try it yet. Will report back after the weekend on how it is working.
Test it out man... You will be helping the tunner get better for the rest of us... I hope it works great for you... Have a good weekend..

Yeah I'll be curious to hear the results as well.

Yes I did get on the test list with Buck but unfortunatly haven't had a chance to try it yet. Will report back after the weekend on how it is working.


I've been watching and waiting for your update, just wondering how things went towing? I haven't had any issues with mine, but I'm also not going camping anytime soon, not for a couple months, so I'm no help for Buck's new programming trial. Wish I could have helped out! Chris

Ok here is the skinny on the test tune that I got a chance to try this weekend.

First of all I put programed the truck and drove it on level 2 for 2 days before I was going to pull the trailer. During this time I noticed that the engine seemed to surge while at cruising speed. I could here the sound in the cab when I listened also. So pulled over and turned the truck off and resarted and tried again. I noticed that it surged even under acceleration. This was all without a load.

Now I figured I would try it with the trailer hooked up and see what it would act like. It is about 2 miles from my house to the highway so it seemed good during that time. Next I pulled on the highway and start speeding up to 60mph and at about 50mph it started acting up. What it was doing really caught me off guard and kind of scared me. The engine seemed to cut out for a second and the pick up again and repeated this a few times. So I slacked off a bit and tried to get up to speed again and try to figure out what was going. I listened and watched my boost gauge dropped when it did its cut out, and it sounds like it is opening the turbo waste gate prematurely. My boost was at 20-25 psi and would drop to 12-15 psi imediatly. So needless to say this tune is not the fix yet.

I did keep the tune in and pulled a couple of hills and it did not go into reduced power but the other drivability issues that it had were almost worse.So I hope this helps and we try a different version and get this problem fixed for us all.

Ok here is the skinny on the test tune that I got a chance to try this weekend.

First of all I put programed the truck and drove it on level 2 for 2 days before I was going to pull the trailer. During this time I noticed that the engine seemed to surge while at cruising speed. I could here the sound in the cab when I listened also. So pulled over and turned the truck off and resarted and tried again. I noticed that it surged even under acceleration. This was all without a load.

Now I figured I would try it with the trailer hooked up and see what it would act like. It is about 2 miles from my house to the highway so it seemed good during that time. Next I pulled on the highway and start speeding up to 60mph and at about 50mph it started acting up. What it was doing really caught me off guard and kind of scared me. The engine seemed to cut out for a second and the pick up again and repeated this a few times. So I slacked off a bit and tried to get up to speed again and try to figure out what was going. I listened and watched my boost gauge dropped when it did its cut out, and it sounds like it is opening the turbo waste gate prematurely. My boost was at 20-25 psi and would drop to 12-15 psi imediatly. So needless to say this tune is not the fix yet.

I did keep the tune in and pulled a couple of hills and it did not go into reduced power but the other drivability issues that it had were almost worse.So I hope this helps and we try a different version and get this problem fixed for us all.
Did you pass this on to Edge also?

Ok here is the skinny on the test tune that I got a chance to try this weekend.

First of all I put programed the truck and drove it on level 2 for 2 days before I was going to pull the trailer. During this time I noticed that the engine seemed to surge while at cruising speed. I could here the sound in the cab when I listened also. So pulled over and turned the truck off and resarted and tried again. I noticed that it surged even under acceleration. This was all without a load.

Now I figured I would try it with the trailer hooked up and see what it would act like. It is about 2 miles from my house to the highway so it seemed good during that time. Next I pulled on the highway and start speeding up to 60mph and at about 50mph it started acting up. What it was doing really caught me off guard and kind of scared me. The engine seemed to cut out for a second and the pick up again and repeated this a few times. So I slacked off a bit and tried to get up to speed again and try to figure out what was going. I listened and watched my boost gauge dropped when it did its cut out, and it sounds like it is opening the turbo waste gate prematurely. My boost was at 20-25 psi and would drop to 12-15 psi imediatly. So needless to say this tune is not the fix yet.

I did keep the tune in and pulled a couple of hills and it did not go into reduced power but the other drivability issues that it had were almost worse.So I hope this helps and we try a different version and get this problem fixed for us all.

Your experience sounds about the same as mine.

I finally got a chance to get the new test calibration loaded onto my Evo. I went to Terre Haute for the diesel extravaganza event so I thought it would be a good time to try it out. It was about 250+ mile trip one way and I was pulling a pretty good load. 25 ft. dual tandem flatbed loaded with my pulling truck and my Honda Rubicon. I would guess the load to be about 13-14,000 pounds all together. Pulling out of the driveway I immediately noticed that the tune felt different. The power didnt feel very linear at all. Felt like it was pulling the fuel back at certain RPMs. I seemed to notice it most around 1900-2200 RPM.

SmallerHauler I think what you are describing referring to the feeling of the truck shutting off briefly, may actually be turbo surge. I experienced the same thing. The turbo would "bark" pretty hard about 5 times quickly, and the truck would buck and jump slightly. I made it about 90 miles into my trip before experiencing the first limp. I pulled over, turned the truck off, turned it back on and all was fine. It ended up happening a total of three times before I decided to just say screw it and I just returned the truck back to stock. After returning the truck back to stock I experienced zero problems for the rest of the trip. Truck ran and pulled fine, but I just missed the extra towing power that I am used to having. I'll gladly sacrifice that for not having to pull over every few miles on the side of the interstate to turn my truck off. I havent had a chance to talk with Buck yet but I plan on calling tomorrow to discuss everything.

Sorry havent been on here latley been very busy.
I have some updates for anyone. I have the fluttering problem solved but may not see as much boost or chance may see slight egt increase. But if you have to have the unit to pull pm me and ill target you to that calibration. I also have new one i posted today to fix the 09 lmm or any one that has the newest latest calibrations from gm Dealer. It will fix the reduce power.

Sorry havent been on here latley been very busy.
I have some updates for anyone. I have the fluttering problem solved but may not see as much boost or chance may see slight egt increase. But if you have to have the unit to pull pm me and ill target you to that calibration. I also have new one i posted today to fix the 09 lmm or any one that has the newest latest calibrations from gm Dealer. It will fix the reduce power.
That is great Buck.. Thanks for the hard work... I will pass it on...

Why is:confuzeldengine power being reduced?

I think it is something to do with the new progamming on the 4th gen. trucks... I know it is on the 09's...

Did this ever get solved/figured out?

Why is:confuzeldengine power being reduced?
The engine power isnt getting reduce but some trucks were having problems going into reduce power MODE. Sorry just thought i would clear that up.

The engine power isnt getting reduce but some trucks were having problems going into reduce power MODE. Sorry just thought i would clear that up.

Right, did that get fixed?

Yes so far we had no complaints on reduce power mode.

my 05 did the exact same thing for a while having to stop and restart......all of the finally changed the fuel filter that was the problem easy fix thankfully i bet thats what it is

I recently updated my edge and worked great when towing my toy hauler. In fact, I noticed lower EGT's than before. I was using Level 2 when towing.

are there any more problems any one is have with the evo race thinking of putting one in my 07 lbz. Got 4" exhaust from turbo down pipe back? will i need to change the down pipe.

Of the ones we sold, only one truck has had issues. All others have been flawless. They are one of the best, trouble free programmers on the market.

You do not need to change the down pipe, but it will help some if you do.

I recently updated my edge and worked great when towing my toy hauler. In fact, I noticed lower EGT's than before. I was using Level 2 when towing.

What update do you have? The one that it is updated with when you plug it into the computer, or is it one buck send you through PM? I have not had any problems with mine, but i have not updated since I got it. (I dont have the newest version where you can change the backgrounds)