Quote Originally Posted by TilmanNA View Post
OK. I will read this 2 to 7 times to get it to soak in. HUGE THANKS!!!! SO, I have the L31 5.7, yet I need to pick the parameter files from the #11 post. I must not be understanding!, for it is a 6.0 LS engine parameters...
So your truck has a L31? I have a Green/Blue PCM file for a 2005 GMT800 Mexican L31/5spd truck.