Thread: L32 in a 97 gtp

ick, your gonna have problems interfacing the L32 PCM with your 97.

first off, the PCM is 100000% different

second the L32 PCM cant communicate to your car

third, your PCM cant controll that transmission

I can go on if you desire.....

your best option is the use your 97 PCM install the L32 and rebuild the Current Trans

I would use the L32 + 4t65E HD (L32 trans) in your car if you have a tuner. You will need a 2003 PCM with service number 12209624. Also will need a 98-03 harness since yours is a 97. You will need to flash a 03 gtp file on that pcm if it doesn't come from a 03 gtp. You also need to change to 3.29 gear in the pcm file. This *should* work.

The 97's are a crap year as far as wiring harness, pcm and vac. If you can get the L32 engine/trans and everything at a reasonable price, I don't see why not.