I have a 04 LB7 ECM that won't accept a tune(locked with custom key - serial number is all zeros - vin and bcc look like arabic). Do I need to get a new eprom chip and burn it, or is it feasible to reburn the old chip? If so does someone have a .bin file for it so that I can flash the correct calibration back into it?
Or I guess here's a better question. Is the eprom the issue?
Thanks, Jayden