Quote Originally Posted by matt5112 View Post
you need a combination of the two PCM's else your car wont run.

do NOT drive it with the GTP pcm because your tranny tables will be very off.

unless you swapped transmissions as well.

What year is your car and what year is the GTP PCM that you have?
Car is a 98 and the pcm is a 98 too as far as i know.