Hey guys, I have had the 4L80e in my trailblazer for about a year and i have still been trying to figure out the tuning end of things to get it just right, I started with mail order tune(PCMofNC) when I first got everything together to get a baseline, then i took it to a dyno and had the knock sorted out and to get a baseline number. It runs good and strong and the trans shifts good but from one day to the next it acts differently, one day itll kick the back end out on the 1-2 shift and then next time it just shifts and goes. Can i get someone to look at my trans tuning to see if there is anything that I have/have not done that should/should not be?
I keep reading the guys with 07+ TBSS that they have to leave the TM in abuse on the trans side but I am not sure if that applies to the 06 MY and the different pcm (tcm could be the same havent searched that yet), so i grabbed a compare file of a 07 tbss 4l80e and there is alot of stuff different in that tune vs mine... other question how the hell do i attach my tune? lol
thank you