OK just put my 3800 in and i have no injector pluse or no fuel pump signal i do have spark and the pcm is seeing rpm when cranking... its a 99 gtp would the theft deterrent system cause this im pretty good at this but im so sick of looking at wires please help
Well the fuel pump will only run for 2 seconds after the key is turned to run\start unless the engine starts. The theft system will stop the injectors from firing though, so Id say thats your problem, if the fuel pump is not related, you can sort that out later.
You can bypass theft with a very simple circuit, or have it programmed out of the ECM. The circuit is very easy, with parts from radioshack. I dont recall where it is off hand, you can check my 3.8 SC build thread, I think the link is in there, or just search.