I just bought EFI Live V2 last week and have downloaded all updated software and updated V2 flash scanner.
I made the 20-20 Tow tune and did have problems flashing ECM until I read the threads and updated the V2 unit, now I have re flashed the ECM and all works very well. I have 285's on my truck and want to reprogram the TCM shift and lockup points but when I try to flash the TCM I get an error the I need the commercial cable. I do have a commercial license but not sure what the error is referring to.
I have uploaded the current TCM program with no problems, saved stock and edit a new copy to flash to the TCM.
Thank You.
Jeff