wiring 94 lt1 FUEL PUMP

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Sep 25, 2009 | 12:11 PM

55ChevyMan

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Joined: Mar 2007

Posts: 185

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From: Slinger WI

Car: 55 chevy Belair & 86IROC Z

Engine: 350 in 55 86IROC Z LT1

Transmission: 55 4speed IROC Z4L60e

Axle/Gears: 12 bolt 410 in55 and 342 inCamaro

wiring 94 lt1 FUEL PUMP

I need help I wired my 86 IROC Z 94LT1 engine swap followed Trans Am#5 on the C100 on the firewall the engine carnks to start but I am not getting any fuel form the fuel pump how do I wire the fuel pump from the PCM ?? and what are the wire colors for the fuel pump and are they by the C 100 on the firewall??? for the fuel pump I know I have to add a new fuel pump relay it just wiring I am have in a hard under standing thanks for your help

Sep 27, 2009 | 02:45 PM

Z28ricer

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Posts: 4,149

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From: Tampa, FL, USA

Car: 93 240SX

Engine: LQ9

Transmission: T56

Axle/Gears: 3.54 R200 IRS

Re: wiring 94 lt1 FUEL PUMP

One side of the relay coil goes to Pcm A7 (red), the other side to ground (opposite the fan relays they receive ground from the pcm and get power feed from the harness), the switch side of your relay you need power and the output to the C100, I believe it *should* be G4, tan/white, however you may want to double check that with a multimeter before quoting me on that.