Ok i hope this all makes sense...
I have a LSA converted Colorado, running 6l80e e67 pcm. Has been setup and Running 2013 Camaro OS in PCM and TCM OS has been flashed as a 6l90..
I have seen some sedans that are 6l80 based on flashed as 6l90 os (as an upgrade apparently), but drive not very well.
This car has numerous issues im trying to sort out, main one is fuel economy and I think trans tuning is playing a big part of this.
Now I have tried flashing a 6l80 OS in this vehicle but has engine light tcm /pcm comes fault.
I guess my question is, anyone have a or know of a 6l80 os that may work in this situation?? (I tried one from a VF SS)
Can get more info if needed. Just not at hand atm...
TIA