Fuel pump wiring help
06-08-2011, 09:14 PM
#1
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Car: 89 z28 iroc-z
Engine: 355 compcam vortec heads
Transmission: th350 10'' dayco 2800-3200 stall
Axle/Gears: 10 bolt with 2:73 upgrading soon
Fuel pump wiring help
Well trying to finish up my motor swap and all that's left is to get the fuel pump to come on. Someone cut the wires to the fuel pump under the car above the rear diff. here's a pic.
I need some help on how to rewire the pump. Can i just hook a hot-n-run wire to the gray wire going to the pump and ground the black wire out? Not sure what the purple wire is for. A little advice would be greatly appreciated. Also the wires that run under the carpet behind the back seat do they go to the fuel pump as well? Here is a pic 
I need some help on how to rewire the pump. Can i just hook a hot-n-run wire to the gray wire going to the pump and ground the black wire out? Not sure what the purple wire is for. A little advice would be greatly appreciated. Also the wires that run under the carpet behind the back seat do they go to the fuel pump as well? Here is a pic 
06-09-2011, 04:09 PM
#2
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Car: 89 z28 iroc-z
Engine: 355 compcam vortec heads
Transmission: th350 10'' dayco 2800-3200 stall
Axle/Gears: 10 bolt with 2:73 upgrading soon
Re: Fuel pump wiring help
Bump, i know some one has got to know this.
06-09-2011, 08:21 PM
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Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: Fuel pump wiring help
Fuel pump positive is the grey wire. Black is a ground. Purple is for the fuel guage sender.
Might as well just reconnect the three back to their counterparts so that the fuel pump relay is working properly, and the fuel guage is working properly.
Are you carbing this motor?
Might as well just reconnect the three back to their counterparts so that the fuel pump relay is working properly, and the fuel guage is working properly.
Are you carbing this motor?
06-11-2011, 02:38 AM
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Car: 89 z28 iroc-z
Engine: 355 compcam vortec heads
Transmission: th350 10'' dayco 2800-3200 stall
Axle/Gears: 10 bolt with 2:73 upgrading soon
Re: Fuel pump wiring help
Yes the motor is carb. I done got the pump to work im just wondering do i need the realy or can i just wire it to the ignition on the fuse panel?
Last edited by 89z28iroc-z; 06-11-2011 at 02:41 AM.
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