Well I played around with tune last night on my 2007 6.0L Avalanche and noticed there wasn't any transmission files. I think it's 4L70e. OS 12614088 is this not supported yet? I did down load the stock tune, quite a bit different from my 99 vette.

Also, I'm not sure what pids to use, Scan tool acting crazy RPM,MPH,AFR commanded, TP%. Any ideas.

Thanks
Scott