I did not but the pump is about 2 months old
I did not but the pump is about 2 months old
95 C1500 LM7, built 4L60e, Circle D 3200, LT's, Nelson tune, open differential, 3.42, and LS1 e-fans. Tractionless
I finally busted out the volt meter but none of the wires are getting power. Shouldn't I be able to tap into any switched power line? The standalone is getting power.
I also checked the starter issue...it is indeed engaging with the flywheel
95 C1500 LM7, built 4L60e, Circle D 3200, LT's, Nelson tune, open differential, 3.42, and LS1 e-fans. Tractionless
old thread, i know.... but I am having the same problem and was wondering if / how you resolved the problem. everything seems to work as it should but the damn thing won't fire because of the lack of power at the fuel pump.
I don't know what year truck you have but i didn't connect the wire from fuel pump to oil pressure sensor like the factory had it and my fuel pump wouldn't work 1992 chevy pickup.Once i connected that wire everything was good.
the oil pressure sensor is unplugged at the moment. i forgot to pull the one off of my old engine. will that matter?
It depends how you wired it but if you wired like i did connecting the fuel pump power from the new pcm to the power going to the fuel pump where the relay is under the hood without the oil pressure hooked up it won't work.
My fp relay wire is connected to the grey wire that comes from the c-100 firewall connector and it powers right up. Also my oil pressure sender is not installed yet and the engine runs. I also thought the tan wire from the oil sender needed to be hooked up to the fp wire so thats a puzzle to me too. Like gagliano7 said, maybe theres a different way to connect them. This is on a 1990 truck,5.3 4l60e swap with a NP harness. Try checking your grounds.
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