Let me start off by saying I am completely new to EFI Live and GM tuning. I purchased my V2 (cheap) from a friend, who really didn't know what he was doing, but he used the vin licenses that came with it.
Anyway a customer brought me a car (04 Pontiac GTO) with a shifting issue that was built and tuned by another shop, he said it been back there "plenty of times" and they cant get it right, so what I am wanting to know is, is there a way to see if the ecm is locked before I purchase and burn up a vin license? He claimed they used EFI live also.
Is there anything that can be done if its locked?
I am sure I will have a million questions as I proceed with this thing.
Thanks in advance!