First time was from stock to canned tune, said it failed, so i reinstalled factory tune and went to go start truck and it wouldn't start. This time, it was directly from stock to a tune and it failed, same thing i guess you could say haha.
No, they didnt tell me whats wrong. Told me its "unusual" for a GM truck to do that. Sounds like it happens a lot across multiple platforms. Don't go onto their forum, saw about 3 threads same truck related to mine. Not gonna attempt it again. Just get my money back and use it toward something else.
The PCM is under the hood, driver side next to the spare battery tray. Took me 2 min to pop out. 3 harnesses hooked into it, only being held on with plastic retaining hooks, kinda surprised there weren't any bolts holding it down
Sent from my iPhone using Tapatalk