I Limped my Predator! [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: I Limped my Predator!


ronadijcks
02-15-2005, 01:30 PM
I limped my predator tune at 65, on the freeway unhitched. I was travelling 75, on flat ground and it was 55 Degrees outside. What gives?

Also, what is the protocol to get it running that fastest way possible. Is it a wait till it cools type of scenario?

MAkes me wonder what it will be like in the summer. 100 plus temps.

THanks.

McRat
02-15-2005, 01:58 PM
Use the Predator to read your Error Codes (DTC). See if it says 1093. Reset DTC's.

Change fuel filter.

The LLY's are getting 1093's with some tuners, the Predator is one of them. It's a "fuel pressure doesn't match commanded pressure" error.

The "new" filter might be more restrictive than the LB7 filter, and hence more likely to throw that code.

Good news? You can erase that DTC while driving, and it will restore power on the fly.

ronadijcks
02-15-2005, 06:10 PM
Use the Predator to read your Error Codes (DTC). See if it says 1093. Reset DTC's.

Change fuel filter.

The LLY's are getting 1093's with some tuners, the Predator is one of them. It's a "fuel pressure doesn't match commanded pressure" error.

The "new" filter might be more restrictive than the LB7 filter, and hence more likely to throw that code.

Good news? You can erase that DTC while driving, and it will restore power on the fly.
NO CODES! Just a Tranny LIMP mode! I did reset all to factory and was fine. Of course, I had to unplug all the fuses, and the whole routine!!!!
There were NO CODES! Just Check Engine LIght, and No RPM's over 2,000.

BK Tool
02-15-2005, 06:19 PM
NO CODES! Just a Tranny LIMP mode! I did reset all to factory and was fine. Of course, I had to unplug all the fuses, and the whole routine!!!!
There were NO CODES! Just Check Engine LIght, and No RPM's over 2,000.That doesn't sound like a tranny limp. Sounds like it threw a 1093 code. That is how mine acted when I threw a 1093. Did it still shift but just funny?

McRat
02-15-2005, 06:33 PM
It did throw a code either way. Either a 700 (trans) or a 1093 (fuel).

The engine does not limp for no reason.

How old is your filter?

PS - Not only can any tuner throw limp mode codes, even people with stock trucks have gotten them, and even Dodge and Ford diesels, and even GASOLINE engines. Welcome to 2005, the land of the babysitting engine computers.

Brayden
02-15-2005, 06:42 PM
That's a 1093 buddy. Really makes you mad when you're trying to blow somebody's doors off. Only cure is to get a pusher pump, or keep your foot out of it. I believe the latter is impossible.

ronadijcks
02-15-2005, 08:01 PM
That doesn't sound like a tranny limp. Sounds like it threw a 1093 code. That is how mine acted when I threw a 1093. Did it still shift but just funny?
It shifted a bit erratically, but still I could never get over 2,000 RPM.
So, I wasn't going anywhere fast after I slowed down and got off of the freeway!

I truly checked the Predator for error codes. There were none before and after resetting to factory.

I am a bit scared to reset to the 65, even though I enjoyed the extra power!
I don't want to cause damage! Or get stranded!

Max Payne
02-15-2005, 08:04 PM
P1093 = 2000 rpm limit.
P0700 = Stuck in third, MIL on.

ronadijcks
02-15-2005, 08:05 PM
It did throw a code either way. Either a 700 (trans) or a 1093 (fuel).

The engine does not limp for no reason.

How old is your filter?

PS - Not only can any tuner throw limp mode codes, even people with stock trucks have gotten them, and even Dodge and Ford diesels, and even GASOLINE engines. Welcome to 2005, the land of the babysitting engine computers.Filter is stock, at 7,900. What would be the best replacement?
Do I stick with stock?

Again, no codes displayed in th epredator when going into diagnostic mode.. Sorry, but I checked it right after the event, and then after re=setting. Once back to complete stock, I did 'clear' them anyways.

And I was accelerating at 75 , when I felt a destinct 'holding up of power', at which time I was able to cruise at about 70, 2,000approx RPM's, then noticing the check engine light, and then exiting the FWY, and letting it cool down. I then reset everything to factory, and haven't gone back yet!

Does anyone know if the check engine light will resolve itself without re=tuning, in otherwords, will it go away if say, the EGT's threw it off, and then when cooling down, will it shut back off? Or, do you have to re set?


Thanks everyone!

McRat
02-15-2005, 08:31 PM
Filter is stock, at 7,900. What would be the best replacement?
Do I stick with stock?

And I was accelerating at 75 , when I felt a destinct 'holding up of power', at which time I was able to cruise at about 70, 2,000approx RPM's, then noticing the check engine light, and then exiting the FWY, and letting it cool down. I then reset everything to factory, and haven't gone back yet!

Does anyone know if the check engine light will resolve itself without re=tuning, in otherwords, will it go away if say, the EGT's threw it off, and then when cooling down, will it shut back off? Or, do you have to re set?


Thanks everyone!


The Predator (and other ECM tuners) do two basic functions:

1) Programming - It can change the programmed values in the ECM (Engine Control Module), thereby increasing power, and or changing speedo correction, and or removing the top speed limiter. These are the programming functions, and you should pull the fuses when doing it. I don't pull them all the time, but you should. This CANNOT be done with the engine on, nor can you do it to more than one vehicle.

2) Data Logging - It can read engine parameters like injector balance, boost (doesn't work right on LLY), RPM, Throttle Position, etc. Some of the data is DTC's which are also called Error Codes. It can read and reset these codes. This can be done while the vehicle is running or sitting, can be done on multiple vehicles, and DOES NOT require pulling fuses, nor should you pull fuses to do it.

When your Check Engine light comes on, you can go to Diagnotics, then Read DTC's and reset them, even when you are driving down the highway.

ronadijcks
02-15-2005, 08:33 PM
Good info! Thanks! Any advice on the fuel filter? I have heard the LB7 filters were better? I am beginning to think I should have kept my LB7!!!

McRat
02-15-2005, 08:45 PM
To the best of my knowledge, all trucks are now getting the "improved" filter. It has double layer filtration.

Everyone with LB7's said the filtration was bad from the factory LB7 filter so many added additional filtration.

I heard of at least one guy removing the stock filter assy, and switching to a different system, and that stopped his 1093's. Or so I was told.

I'm putting on a lift pump soon to see if that fixes it.

WanaDmxsub
02-15-2005, 10:02 PM
Good news? You can erase that DTC while driving, and it will restore power on the fly.Yea, but what happened when you tried to change tunes:D .

ronadijcks
02-16-2005, 06:48 PM
Yea, but what happened when you tried to change tunes:D .
Changing tunes on the fly won't happen with OnStar, due to the constant hunting of signal and the contact with 'OnStar 1' I've heard they listen on conversations. Conspiracy Threory???

Anyone?

WanaDmxsub
02-17-2005, 12:04 AM
If McRat got the truck running with the fuses pulled, I'll bet he tried it.):h
I don't have to pull fuses to change tunes, but I also don't have a spare PCM if this one takes a dump.:(
Come on McRat, I know you tried it.:ro)

McRat
02-17-2005, 12:50 AM
Let's say I've done some stupid things before and leave it at that. :D

ronadijcks
02-17-2005, 02:33 AM
Let's say I've done some stupid things before and leave it at that. :D
:lol: :Nothing_f :funnypost :confused: :exactly: Censored Been There:lol: