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Thread: Fuel pump relay signal wire
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03-04-2010, 11:51 AM #1
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PBM 366ci TC78 E85- 2004 Pontiac GTO PBM A4
Fuel pump relay signal wire
Ok, im trying to the wiring on this scavenge pump. My thought is to use the signal wire for the fuel pump relay to trip my oil pump relay, this way it primes, and runs while the vehicle is running.
where the fuel pump relay at? Or does anyone know a better way to do this??
Im assuming its near the battery in the relay box, lol. but ive never had the cap off, so just looking for insight before i leave workLast edited by JAX04; 03-04-2010 at 12:00 PM.
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03-04-2010, 03:51 PM #2
I don't see why it wouldn't work. Yup your right the relay is in the box under ther hood by the passenger fender. Pop the cover off and its all labeled
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03-04-2010, 04:32 PM #3
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Phantom Black Metalic- 2005 GTO
I always use the jumper for the fuel pump,this way all you need to do is splice it back there,the jumper wire can be ran right through the wiring harness that goes through the trunk ,I put the wire inside the groumet,all you need is to activate the power side of a relay.
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03-05-2010, 03:09 AM #4
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PBM 366ci TC78 E85- 2004 Pontiac GTO PBM A4
u always use the "jumper wire". Please forgive me, but it took me two weeks to tackle my nitrous setup, Im just a scared bitch when it comes to wiring, lol.
Could you maybe explain a little more about this "jumper" wire, what color is it, and where it can be found. If all else fails, ill wire the thing to a switch and hope to remember to turn it on and off. lol
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03-05-2010, 03:33 AM #5
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03-05-2010, 03:34 AM #6
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PBM 366ci TC78 E85- 2004 Pontiac GTO PBM A4
i have a relay and wires, just not sure where to go with it, lol
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03-05-2010, 04:03 AM #7
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Phantom Black Metalic- 2005 GTO
not a problem ill give you the details,ill post up later today pics and instructions. here you go
the wire is purple this is the wire you need to use on the relay 12 volt exciter wire ,this is the one you need that turns on the relay side so it sends power from the relay to what ever you want to use. I taped it to the exhisting wireing harness and through the groumet.Last edited by qwkgto; 03-05-2010 at 11:21 AM.
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03-05-2010, 04:16 PM #8
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PBM 366ci TC78 E85- 2004 Pontiac GTO PBM A4
ok, so i need a power wire running from the front, to the relay, a pump ground, relay ground, and whats the 4th prong for, or do i need a three prong, ive only ever wired one relay before and dont remember it too well, it for nitrous.
EDIT: doing this tonight, so i need some input,
purple wire to pin 86
power wire to oil pump pin 87
ground 85
constant power 12v pin 30
4 prong relay????Last edited by JAX04; 03-05-2010 at 04:28 PM.
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03-05-2010, 06:23 PM #9
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Phantom Black Metalic- 2005 GTO
lol help..ok yes .you will need a power wire from front, I ran one from the alternator.(or battery), hot side, back to the power side on the relay or pin 30
then purple wire to pin 86,this wire is the one you spliced into it makes the relay send power to the oil pump.
the ground can be hooked to any good ground under the car.
the ground going to the pump just ground it to one of the bolts where its mounted.
its that simple,yes 4 prong.
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03-05-2010, 07:11 PM #10
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PBM 366ci TC78 E85- 2004 Pontiac GTO PBM A4
sweet, so i was right, thanks qwkgto., thanks a million man!!
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05-03-2012, 03:53 PM #11
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PBM 366ci TC78 E85- 2004 Pontiac GTO PBM A4
Glad we posted this, started a new project and forgot how to wire a 4 prong relay, ha ha
New project...
Maybe i oughta start a thread?
99' Stang, L33, S475, powerglide? mua ha ha ha
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