Electric fuel pump wiring

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sgtpoliteness
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Joined: Sun Sep 30, 2012 5:56 pm
Location: Arvada, CO

Electric fuel pump wiring

Post by sgtpoliteness »

Hey guys! So, my rig came with a Holley electric pump but not plumbed or wired up. How do you guys have yours? I heard it should be low and as close to the pick up as possible. Do you run a relay? Thanks!!
1977 Cherokee Chief WT w/ 2" lift
360 (originally a 401)/TH400/QT w/ MM part-time
16197427 $OD junkyard TBI set-up
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fulsizjeep
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Re: Electric fuel pump wiring

Post by fulsizjeep »

I don't run a relay. On two Wags it is wired to the cigarette lighter circuit. On another, it was on the choke circuit until the choke wire shorted out. Then I moved it to the circuit for the ignition module. Not sure how the J20 is wired. They are all mounted on the left fame rail just in front of the tank.
Flint Boardman
88 GW, 401/727/208, 5" lift, D44s/4.10s/locked up, 35s
https://jubileejeeps.org/quadratrac

AwesomeJ10
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Re: Electric fuel pump wiring

Post by AwesomeJ10 »

I always run relays to the fuel pump, but all of my rigs are TBI and the relays are part of the harness.

It's a good idea to run a couple of relays to power the FP, but like Flint said, it's not required. You need to put it on a fused circuit though.

You want to put that pump as close to the tank as possible. Tuck it inside the frame rail and secure it well. Don't forget to put a filter between the tank the pump. (and then don't forget to carry a spare filter)
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sgtpoliteness
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Joined: Sun Sep 30, 2012 5:56 pm
Location: Arvada, CO

Re: Electric fuel pump wiring

Post by sgtpoliteness »

Cool, thanks guys! At the very least I'll start with a well sealed fuse off of a key on power.
1977 Cherokee Chief WT w/ 2" lift
360 (originally a 401)/TH400/QT w/ MM part-time
16197427 $OD junkyard TBI set-up

letank
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Re: Electric fuel pump wiring

Post by letank »

A feed to the A/C spade on the fuse block.... then a fuse of course.... No relay.... on both FSJ
Michel
74 wag (349 Kmiles... parked, next step is a rust free body)
85 Gwag (229 Kmiles... the running test lab)
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ScottsMojo
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Re: Electric fuel pump wiring

Post by ScottsMojo »

12v fused ign to oil pressure safety switch terminal "NO", oil safety switch terminal "C" to fuel pump +, oil pressure safety switch terminal "NC" to starter terminal + (wire 42).
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