Just got my overkill pcm today and put it in and my car wouldn't start. Used aeroforce scan gauge to do that new pcm install thingy and car started and run fine even noticed some power difference and my red line was different BUT the rev limiter is still the same and I still have 5kr... Had 5kr before the install and after. Its like I only have half of the tune working... Is this possible? Should I just go to a gm dealer and have them do a relearn program for the new computer? Like I said I can tell a difference with the new pcm but its not all there. only thing I didn't like about this computer is now I have a old looking corroded pcm instead of my new clean one... Overkill could at least clean these things lol.
