Hey, I have a 1997 Pontiac Grandprix 2 door non-SC 3800 with 140,000 miles on it. I just had the typical no overdrive issue and had the transmission swapped out with a used one with 70,000 miles out of the exact same year model and engine. But right before the grandprix was in the shop for that, I also lost my 1st gear. If I move the selector to 1, the car does the same as if it were in 2 or D. I searched around on the web and some people had the same issue and either reflashed the ecu or swapped the ecu with one from a junk yard. Should that be my next step in trying to fix this problem? I can get the ecu out of the same GP that I got the transmission out of. But then I would have to mess with that GM passlock stuff right? Thank you
