I scanned a 2008 G8 and the download seemed fine. Was able to download and save the file. Upon trying to write to the PCM, I get an error code that the TCM program is missing. When you first click the write tune, the screen pops up and the TCM calibration is there, as soon as you hit the write button the TCM calibration disappears and you get a TCM error. Now the car is showing a loss of communication with the TCM and it seems to be stuck in 2nd gear.
Only had it once, needed to either pull the negative terminal or reset the TCM some other way and try again
email support please.
It doesn't have to be perfect, it just needs to be done in two weeks...
A wise man once said "google it"
We're good, right after I posted I figured try and pull the fuse and works fine.
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