1989GTA

I have the 6L80 installed in the car and hooked up to the GMLAN communication system. What I need to find out is what OS is in the tranny. Maybe the Vin# would give me the year.

So what devices are available that I can read the TCM and recover that information? EFI Live, HPTuners or what else? I might do some minor tuning down the road such as changing shift points.