Hey guys, I need some help/advice.
Finished 411 swap on my 1997 GMC, 5.7L with hotcam. My local tuner guy came and did the base tune and after that tried to do the final tune to squeeze out the HP and torque on this girl........
But we couldn't. For some reason my truck is stuck in second gear. Limp mode?? I had the mechanic at the shop I work at scan my truck and he found that the transmission adapt data is blank.
Anybody know what the heck I'm looking at here? Obviously, I'm guessing a wiring issue from the swap. I'm just not sure where to start.
Any help??
Thanks guys,