I swapped a LH6 5.3L into my 1998 Jeep Wrangler. I had it mail order tuned. The tuner used LS1 Edit. I just bought EFI Live to do some tuning myself but it is telling me the PCM is locked.
The original tuner said he could unlock it for me but that might wipe out his original tune? Is that correct? I was hoping he could unlock it and that i would still be able to make modifications to his tune. Thanks in advance.