I got a motor, trans and supercharger out of an '04 Regal to put in my '98 GTP. We have everything already in the car, but are unable to get it to try to turn over. I've called several places and googled the hell out of it, but I keep getting different answers from everyone about what will make it work. I have a PCM from an '03 GTP that was sent with all the shits. I swapped all of the plugs over that didn't match up from the old motor (or at least I'm pretty sure I got them all), like a couple places said to, so my wiring harness would work. Then I found out the PCM I have needs to have security removed from it to make it work with the car. When I called a shop that was able to do it, they said the PCM from my '98 would work fine because the electronics from that year of Regal are the same, and just save my money and don't worry about removing the security from the '03. Hooked that PCM up and still nothing. I would prefer to use the '98 PCM if possible because it already has a tune on it, but if I have to use the '03, then that's fine too.
At this point, I'm just sick of being told different shit because I have basically zero time to work on it since I'm always out of state and honestly I don't know shit about this kind of stuff which is just making it that much more difficult. Any ideas or help would be greatly appreciated. Or if you know a lot about this stuff and think you could fix it fairly quick, I would be happy to reimburse you for gas and buy you beer if you could come help me get it running out here in London.