Hey guys, Im running into a few PCM related problems with my LS1 swap. Im using a TPIS aftermarket harness adapted to my original 1967 camaro harness. Ive got all four leads to the fuse block, starter, ignition, and battery hooked up, all charging 12 volts. Heres the problem: I turned the key to the on position, expecting the PCM to tell my fuel relay to to turn on my fuel pump, and I got nothing. I jumped around the green PCM wire in the relay and the pump switches on perfectly. For whatever reason my PCM wont tell my the relay to turn the pump on , and Im totally stumped. Of course when I try to crank the car it just spins because I have no fuel to the injectors, but the coil packs and injectors both read 12 V hot. Does this mean I need a new PCM?????? I REALLY hope not.

-Gordon

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torch red w/ black 1967 Camaro w/ LS-1 and M6, trying to finish it this semester, (blew the old 305!)

 

Are you using the correct key or did you disable the VATS code? (or whatever turns of the coded key requirement).

Hal

 

Well I paid MTI $500 to remove VATS and the EGR programs and a couple of other things, so that shouldnt be the problem, Unless I got royally screwed.

-GOrdon

 

I'd give MTI a call and ask them what the what.

Hal

 

Well the thing is MTI did the reprogramming over a year ago, when I first picked up the engine and trans, so If I bring my problems to them Im pretty sure theyre gonna say the problem occured aftre they did the work. Does anybody else have any suggestions?

Gordon

 

Don't be so quick to believe they won't help you. They got your business once and they know the best thing to do is to keep you happy.

Hal

 

Well I took the PCM over to MTI and Jason hooked it up to a car there, and he says its perfect, and that VATS is indeed removed, so I guess my problem lies in my wiring, next time I'll have more faith in MTI

-Gordon