blackdirtymax

New member
Apr 15, 2010
825
0
0
augusta, ga
Well, what all codes do you have shut off? I am going with either a maf or under over boost problem. Log the MAF and see what it does. What is the scenario when it comes on? Look st the C08xx tables and make sure the values are maxxed correctly. A log will probably go a long way

Already have crossed all those t's and even dotted some I's .


Built motor , duel fuelers , 60's overs , gtx4202r
 

bluessmax

Tabasco Injected!
Nov 4, 2010
1,143
6
38
Lake Charles, la
The only thing on Eric's dash is stuff that happened since we took everything out the dash...that's a given! Lol airbag light ect. No codes.
 

GMC_2002_Dmax

The Still Master
Didn't want to have to post this, but oh well !!!

At the current time there is nothing I can do to fix what is going on, when you delete completely the Intake Heater, Intake Air Valve, EGR system, DPF system and go in and shut down the DTC CODES for the eliminated components there is really nothing else I or anyone else can do.

And to all the "tuners" out there, I do know how to manipulate the timed tables and set up the EGR/DPF when it gets eliminated.

In my opinion the LMM trucks are totally hit or miss, what I have found in common is anything other than a stock VVT will cause major headaches on some trucks.

It seems that the Cheetah and VVT/4094 chargers cause a major headache and since other "well known tuners" have attempted to fix these undelying issues as well with no success. So before I got involved with several of these LMM trucks the post history proves these problems have existed long before I got involved especially with TANK222's truck.

I also have tuned more than my share of LMM's with Cheetah's and they have been pretty much trouble free, but are all pre 2008/LMM's. To the poster with the 07.5/LMM there is your answer, the earlier OS's didn't have these issues, as do the 2008's for the most part.

NOTE: EFI-Live is aware of these issues and Ross and I are have been and are working on a fix for the last 3 weeks, until I can gather the rest of the information needed for Ross there is nothing that can be done to address what these trucks are doing, so everyone will have to sit tight and wait for Ross and I to diagnose/test/hopefully fix this.

Just so everyone knows, OS swaps have been attempted, all codes turned back on in an attempt to isolate the underlying issues and then shut off one by one in an attempt to diagnoses the problems with these trucks.

Many problems were present long before I got involved with the exception of Johnny770 who's truck ran perfect before deleting all the emissions parts and swapping to this Cheetah/twins.

I am not blaming the Cheetah, nor am I making up excuses, but I have tuned hundreds if not over 1,000 trucks, and very rarely do I ever have trouble with them running correctly, and Harbin_22 is running my tuning as well as a bunch of other LMM's here on the board, you just don't know it.

So before anyone attempts to blow up Ross's inbox don't waste your time........when we get an answer and a fix it will be rolled out to everyone, but for now please be patient and if you have a 2007.5 or 2008 consider yourself lucky to have a code free LMM.

;)
 

Harbin_22

Active member
Dec 4, 2010
3,858
7
38
Southern Indiana
I am currently running a moonshine tune. I just have not really been able to run it do to trans problems, but yes my truck runs fine with tony's tunes and he has been extremely good to deal with. I just have not commented about my tunes until I really get to try them out.
 

GMC_2002_Dmax

The Still Master
Yes,

Johnny770 tried another ecm, we tried another OS, we tired shutting every single DTC in the list to "Not Reported" as a test, guess what, still set the "Reduced Power Message" with every dam code turned off.

The tests have shown that the codes are "ghost codes" they won't set when you place "not reported" in the check box but will code when it is set to anything else.

All are related to the EGR/DPF/IAH/IAV and p0299 underboost due to the truck being a lazy, slow ass POS.

I suspect what is going on with TANK222 is similar to what is going on with Johnny770's truck and to some degree BlackDirtyMax's LMM issues.

I am confident Ross and I will get a resolution, just don't know how quickly as Ross is extremely busy and has been very kind to take time out of his busy day to help me resolve these issues.

Believe me, EFI-Live is taking this seriously and is on-board to try and get a solution for these LMM issues, it's just gonna take some time
 

Bonestock

Active member
Aug 9, 2010
1,358
1
38
Worland Wy
Mine runs good when it is boosted up but is a very slow and laggy building boost and not much fun to drive. Kinda like a two stroke motorcycle you are either on the pipe or out of the torque. :confused:
 

TeaBagger2006

Im a Garrett Nut Swinger
May 11, 2008
3,123
15
38
Bis ND
Isn't there some super secret table that has to be adjusted? Won't throw codes but will run like garbage until you find the sweet spot on that table