You must reprogram your grand prix PCM, there is no other way around it.
As in with a tuner.
You or anyone else know of anyone in my general area that could do it without me sending my PCM off? I have a guy with a Tech 2 But he couldnt do anything.
99 Grand Prix SE-Blue CAI, 3.03 GR Transmission, U Bend Delete.
time to call the exterminator