Team,

Fairly new here and new LMM (picked up early January) Question is, my truck has yet to go through a regen cycle. It is at 2500 miles now. Temps have been in the 30's at night and 40's-50's daytime. Should I have any concerns here?

Thanks!

Same with my truck, just over 2k and no regen that I have noticed.

Team,

Fairly new here and new LMM (picked up early January) Question is, my truck has yet to go through a regen cycle. It is at 2500 miles now. Temps have been in the 30's at night and 40's-50's daytime. Should I have any concerns here?

Thanks!It's regen'd - you just haven't noticed - unless you're really paying attention like driving in town where you can smell it or watching the mpg decrease while you're driving at a steady speed, it's very easy to not know it's happening. Why do you think it hasn't?

Your trucks have gone through regen. I would bet my house on it. It depends on how hard you drive it and what altitude you live at but the truck will regen some where between every 250 miles and 800 miles. If you are not in tune with your truck you will never notice it. If your truck has not gone into regen for 2000 miles you would be walking.

They have been thru it several times...... About the only way to tell without an MSD or Edge dash monitor is if you hapen to reset your DIC and are only getting 12 MPG on the freeway when it usually reads 20 MPG........ Or smell something hot when you park.


:pimp:

I would bet that both of you do some or a lot of hiway driving and that's when your regens have occurred. When I drove on the hiway with DPF, I never noticed a regen

If you go into a regen around town during stop n go, you WILL notice. Stinks to high heaven and idle is higher

Thanks for the quick replies guys! This is an awesome site! I would like to think that i am in tune with my truck. I thought it would come up on the DIC when in the middle of the process?

Thanks for the quick replies guys! This is an awesome site! I would like to think that i am in tune with my truck. I thought it would come up on the DIC when in the middle of the process?

No, it is for the most part completely invisible unless you are stop n go

X2. no there will be no warning of a regen. look for the rpms to rise to around 800-900 at idle. most complain of a smell. i have only smelled it after turning the truck off and getting out. but in 2000 miles, it HAS regened

They have been thru it several times...... About the only way to tell without an MSD or Edge dash monitor is if you hapen to reset your DIC and are only getting 12 MPG on the freeway when it usually reads 20 MPG........ Or smell something hot when you park.


:pimp:

Here is how I have my Dashhawk setup:
http://i50.photobucket.com/albums/f335/DelsCRF450X/IMG_1689.jpg

I have seen it regen at 17, 22 and 28 on the soot level. The regen at 17 only took it ~10 minutes. The egts are before and after the DPF. When you see the first one go above 700 it usually starting regen, then both of them rise to around 1100 each.

perfect. I'm sure it has regened then and i just have not noticed. My commute to work is about 17 miles or 30 minutes each way and is not stop and go city traffic. All country roads. Thanks Guys!

BC

Here is how I have my Dashhawk setup:
http://i50.photobucket.com/albums/f335/DelsCRF450X/IMG_1689.jpg

I have seen it regen at 17, 22 and 28 on the soot level. The regen at 17 only took it ~10 minutes. The egts are before and after the DPF. When you see the first one go above 700 it usually starting regen, then both of them rise to around 1100 each.

New LMM has 800 miles on it. I just got the Dashhawk PN13100 installed;first time out truck went into regen.Soot was around 20,EGT around 1150,I drove till it finished,took about 20 min and 20 miles. RPM was obout 800 ideling. Just wanted to see what it would do. Soot went to 0. Average Est. Milage never changed???? If it has done a regen pryor to this I missed it????? The wife said there was fire comming out from under the truck. ( just kidding ) On the D.H. I have 6 screen; Boost ,EGT 1&2,Soot,Regen,Tranny temp. Pretty neat.

New LMM has 800 miles on it. I just got the Dashhawk PN13100 installed;first time out truck went into regen.Soot was around 20,EGT around 1150,I drove till it finished,took about 20 min and 20 miles. RPM was obout 800 ideling. Just wanted to see what it would do. Soot went to 0. Average Est. Milage never changed???? If it has done a regen pryor to this I missed it????? The wife said there was fire comming out from under the truck. ( just kidding ) On the D.H. I have 6 screen; Boost ,EGT 1&2,Soot,Regen,Tranny temp. Pretty neat.
Did the DASH-HAWK Void your warranty?:)

Did the DASH-HAWK Void your warranty?:)

It should not, because it does not change an parameters it just reads the data that the obdII port spits out. It gives you information that GM should have,:mad: such as regen status, etc...

Did the DASH-HAWK Void your warranty?:)

:)The Dashhawk is a monitor;It only reads the Truck OBD; It does not put anything back into the OBD. I think a tuner reprograms the computer. If I have a problem,The dealer will never see it. I have been told by a software expert at their website that it does not leave a signature. I hope this helps. :)

In looking at their website under "GM Specific parameters", I didn't see the "soot" or "regen" fields. Are they from a recent downloadable update? Were there "hard taps" you had to make or does it read those two items electronically from the ECM?

In looking at their website under "GM Specific parameters", I didn't see the "soot" or "regen" fields. Are they from a recent downloadable update? Were there "hard taps" you had to make or does it read those two items electronically from the ECM?

:)It can be set up to read anything in the computer. No " hard tap "needed. I have the 6 screen;It reads- boost,regen,soot,EGT 1&2,Tranny temp and it will do many more.That is the reason I got it was no wiring.You have to set it up on your pc With verson V2.4. For the LMM. plug in and go nothing to it. Good Luck :)

:)It can be set up to read anything in the computer. No " hard tap "needed. I have the 6 screen;It reads- boost,regen,soot,EGT 1&2,Tranny temp and it will do many more.That is the reason I got it was no wiring.You have to set it up on your pc With verson V2.4. For the LMM. plug in and go nothing to it. Good Luck :)

Hey thx man,:) I have been meaning to get one but thought it may void my warranty, ordering one tommorow:ro) thx again:D

does the dashhawk come with the dash pod or where do you get one of those for the nbs

I got mine from one of the vendors on this site. The dashhawk and edge insight are the samething. edge has the pods. there are 2 different ones so you need to know which dash you have. Also the insight is a little cheaper, but can be downloaded with the dashhawk programming.

New LMM has 800 miles on it. I just got the Dashhawk PN13100 installed;first time out truck went into regen.Soot was around 20,EGT around 1150,I drove till it finished,took about 20 min and 20 miles. RPM was obout 800 ideling. Just wanted to see what it would do. Soot went to 0. Average Est. Milage never changed???? If it has done a regen pryor to this I missed it????? The wife said there was fire comming out from under the truck. ( just kidding ) On the D.H. I have 6 screen; Boost ,EGT 1&2,Soot,Regen,Tranny temp. Pretty neat.


Wildcat, same here. My truck was in regen today and while it was, the fuel mileage never dropped. I was on the hwy when it happened. Granted it has dropped as low as 9mpg during a regen and sometimes it hasn't dropped any. 10k miles on my truck, I dont baby it, I let it idle alot and this thing only regens maybe twice a month. Once every other fill up.

:)The Dashhawk is a monitor;It only reads the Truck OBD; It does not put anything back into the OBD. I think a tuner reprograms the computer. If I have a problem,The dealer will never see it. I have been told by a software expert at their website that it does not leave a signature. I hope this helps. :)

Does it clear codes? if so when you do does it erase the computer?

yes and yes

Does it clear codes? if so when you do does it erase the computer?
:)I had 3 codes when I installed the DH; I could not find the codes in anything I read. I cleared them. It never changed a thing that I can tell. A friend who knows said you can have codes and never trigger a CEL. This must be correct.All the DH does is read data from the computer and clear codes. I hope this helps.:)

In looking at their website under "GM Specific parameters", I didn't see the "soot" or "regen" fields. Are they from a recent downloadable update? Were there "hard taps" you had to make or does it read those two items electronically from the ECM?

Here is the latest:

http://dashhawk.wikidot.com/master-parameters-list

wildcatbrownhound (http://dieselplace.com/forum/member.php?u=73904)

You said that there is no wiring required...it just hooks up to your OBD port. Don't you have to drill and tap a EGT probe into your manifiold and wire that into the device?

does the dashhawk come with the dash pod or where do you get one of those for the nbs

The mount is separate, mine is the Edge Insight mount and cost $40-45. The LT one is Edge part number #28301, the LTZ is #28302.

http://www.edgeproducts.com/products.php?p_cat=56

wildcatbrownhound (http://dieselplace.com/forum/member.php?u=73904)

You said that there is no wiring required...it just hooks up to your OBD port. Don't you have to drill and tap a EGT probe into your manifiold and wire that into the device?

The EGT is an option:
http://www.msdignition.com/forum/showthread.php?t=11123

The EGTs it can read are the probes before and after the DPF GM uses to measure the soot burnoff.

Are the Egt 1 and Egt 2 readings (by the DPF) much different from the Manifold EGT? If they are close, then why bother installing the manifold probe?

wildcatbrownhound (http://dieselplace.com/forum/member.php?u=73904)

You said that there is no wiring required...it just hooks up to your OBD port. Don't you have to drill and tap a EGT probe into your manifiold and wire that into the device?
:)Go back and read #15 and #17 post in this thread. NO DRILLING.If you want a EGT probe right out of the manifold you will have to drill it and install it there. I assume you would have to installe a gauge for that. The DH reads the EGTs from the probes before and after DPF. Look under the truck and you will see the 2 probes. GOOD LUCK.:)

I dont baby it, I let it idle alot and this thing only regens maybe twice a month. Once every other fill up.

Man I wish I could say that. I've noticed a regen at least three times already at 700 miles. I let mine idle too, but I probably baby it more than I should.

Are the Egt 1 and Egt 2 readings (by the DPF) much different from the Manifold EGT? If they are close, then why bother installing the manifold probe?

The manifold EGT is closer to the engine and thus you can make sure you don't overheat the engine. It would be for if you run a big tune or haul heavy loads or just peace of mind. It is on my todo list.

Are the Egt 1 and Egt 2 readings (by the DPF) much different from the Manifold EGT? If they are close, then why bother installing the manifold probe?
:confuzeldI have a thread in the "fuels,system air & exhaust,emmission" section named "what is the difference" and it never got an answer. I guess no one knows. I would really like to know myself?????? Mabe someone will see this and let us know. :confuzeld

Thanks. I was thinking of putting in a manifold probe for an EGT ( I do alot of trailer towing in the the Rockies), but without a tuner I'll probably be okay using the factory probes the OBD uses. I'll be looking into the DashHawk.:)

Are the Egt 1 and Egt 2 readings (by the DPF) much different from the Manifold EGT? If they are close, then why bother installing the manifold probe?

They are not even close. The EGT's shown fromthe exhaust pipe do you no good. What you need to know is the temp of the exhaust going into the turbo. It is very misleading. I have the Edge Evo and love it. Gives you everything the DH does, plus a tuner. You would not believe the difference.

They are not even close. The EGT's shown fromthe exhaust pipe do you no good. What you need to know is the temp of the exhaust going into the turbo. It is very misleading. I have the Edge Evo and love it. Gives you everything the DH does, plus a tuner. You would not believe the difference.
:confuzeldThe reason I chose the DH is for warranty reasons. The truck will pull a 8000 pound RV at 70 MPH with as little effort as anything I have ever owned. I could not justify a tuner. If the EGT from the manifold to the DPF are not even close what is the difference? I have been trying to find this out for a month now and I cant seem to get a answer. THANKS. :confuzeld

:confuzeldThe reason I chose the DH is for warranty reasons. The truck will pull a 8000 pound RV at 70 MPH with as little effort as anything I have ever owned. I could not justify a tuner. If the EGT from the manifold to the DPF are not even close what is the difference? I have been trying to find this out for a month now and I cant seem to get a answer. THANKS. :confuzeld

You should have no more of a warranty concern with the Evo than with the DH. I always unplug it before going to the stealer as I would even if I had a DH. I don't remember the difference between the two temps, but I will check the next time I get in the truck and post it back here. Probably over the weekend, if not tomorrow.

The EGT (EGT-1) at the input of the DPF is the output of the
Cat which heats up with the unburned fuel that is passed
through to burn the soot out of the DPF during regen. This
has nothing to do with the actual EGT at the input of the
turbo. When you are in regen you will see a much higher
than normal temp here. Probe at the input of the turbo is
where you want to monitor.

You should have no more of a warranty concern with the Evo than with the DH. I always unplug it before going to the stealer as I would even if I had a DH. I don't remember the difference between the two temps, but I will check the next time I get in the truck and post it back here. Probably over the weekend, if not tomorrow.
:) FYI The DH does not leave a footprint in you truck computer; A tuner does. I have a friend who had a ( I think EFI) on his truck. He took it in for the CEL. He also removed the tuner before he took it in. The stealer told him his waranty was voided because of the tuner.They told him when he put it on and when he took it off. He took it to another stealer and they told him it was in the system???? with a voided waranty. They also told him ON STAR had it on record. Anyone can do whatever they want; IMO, That is a lot of waranty to give up over a little more HP. This made a beliver out of me. I have heard of this on some of these threads also. THANKS :)

I checked the difference between the EGT's at the probe and DPF. I found there was as much as a 500* difference consistantly. The probe gives instantaneous feedback whichis why you want it in the first place. The two at the DPF are simply monitoring the regen cycle and were much slower to show changes in temp as a reslt of driving habits. Ifyou relied on those, you could easily melt down way before alarming EGT's were displayed. I would ignore them and use only the EGT's from a properly installed pyro.

I checked the difference between the EGT's at the probe and DPF. I found there was as much as a 500* difference consistantly. The probe gives instantaneous feedback whichis why you want it in the first place. The two at the DPF are simply monitoring the regen cycle and were much slower to show changes in temp as a reslt of driving habits. Ifyou relied on those, you could easily melt down way before alarming EGT's were displayed. I would ignore them and use only the EGT's from a properly installed pyro.

What is the temp on the EGT at the manifold when it is doing a regen?

Just put on 250 miles and went into regen once for 20 miles. i woulda never even noticed if it was for the edge isight

What is the temp on the EGT at the manifold when it is doing a regen?

Depends on if you are at idle or driving. I've seen it anywhere between say 450*-1000*. This is during "normal" driving w/o heavy acceleration. The DPF temps will almost always be lower which is dangerous if you are relying on them. There is really no point in even looking at them.

Depends on if you are at idle or driving. I've seen it anywhere between say 450*-1000*. This is during "normal" driving w/o heavy acceleration. The DPF temps will almost always be lower which is dangerous if you are relying on them. There is really no point in even looking at them.

I plan on getting the probe, I just watch the DPF temps to see if it is going into regen. It usually goes up in temp before it says its regening.

I have been curious about how to tell when my new 3500 does a regen too. I only have 650 miles on it, and have not done a lot of mods yet. I had an Edge Juice with Attitude on my 05 LLY 2500, and kept it when I traded her for the new truck. It will not work on the 08 LMM. Now I need to sell it so I can buy a Dashhawk, or another Edge that will show me the information I need.

New trucks sure cost a lot more than just the truck price.

Sawblade, I had a 2004 LB7 that was way modded (everything not listed on signature) out too. Im scared of voiding my warranty with any power upgrades and will only be using something like the insight. As far as the price of the truck the $3000 in state taxes was a shock for me.

First time with my EVO hooked monitoring a regen. Don't have the EGT probe hooked up yet so still can't compare. Anyway pre-DPF highest temp was 1250, post 1220. This was at about 45mph with no load and climbing a slight hill. Will be interesting when I get the EGT probe hooked up so I can look at all 3 at once.

Oh forgot soot level was 34 when it went into regen.