so I'm having this rather strange issue...
While tuning my 99 Trans Am with a 4l80e swap and a PCM4Less adapter (love that thing!) but when I get on it the transmission suddenly decides it doesn't want to go into 4th or overdrive (as far as I can tell) until the car is shut off. Is there some sort of limp mode these go into under certain circumstances that I am hitting?
I included a tune but I don't have a log that has anything relevant in it...
thanks!
Gary