How to wire fuel shutoff solenoid?

NotStock · 10-14-2010, 04:06 PM

Any help with how to wire the fuel shutoff solenoind on a 12v motor.... Thanks

ykdave · 10-14-2010, 06:19 PM

VE pump or p-pump?

If its a VE, its just a single wire. hot = run

If its a p-pump, the solenoid has 3 wires. ground, hold and pull coils. cant recall off the top of my head the color coding, but you want ONLY the hold coil to have constant keyed power. The pull coil can only be energized momentairily (usually energized with the starter) as it draws high current and produces alot of heat.

NotStock · 10-15-2010, 12:03 AM

The motor is a p-pump engine. The wire colors are black-white-red. Should the constant power be run through a relay? Any quess which wire is pull and which is open?

DieselTahoe · 10-15-2010, 04:47 PM

I would hook the constant power top a switched on 12v that way when you turn the key off the motor will stop

Ryan

God prefers Diesels · 10-17-2010, 06:58 PM

The big black one is ground. The little one in the middle is hold, and the one left over is pull. If you don't wire it through a relay, put an inline fuse in one of them just incase the starter contacts stick. You don't want to catch your truck on fire!

ykdave · 10-17-2010, 10:44 PM

the hold coil could be put on a relay for safety (since what the engine is in is obviously doesnt have an ignition switch designed with this in mind!)

The pull coil definitely requires a relay. A regular 30/40amp relay 'might' work, but you should use the larger 70/80amp relays like what is used on the dodges

Fusable links for both coils is a great way to keep from starting unintended fires...

Twright · 10-19-2010, 04:25 PM

I have my hold wire on a 200amp continuous duty solenoid, along with other various acc. I have running with Keyed on ignition.

The pull(white) i have wired to the starter solenoid on the fender.

Ground is grounded.

NotStock · 10-20-2010, 04:58 PM

Thats just what Im looking for. Thanks!

dfairchild19 · 11-11-2010, 09:41 AM

are there any diagrams out there to make this easier on the electrically challenged??

rcfmnc · 10-07-2012, 12:22 AM

I'm having trouble whit my fuel pump runnig after the key is truned off; and it still runs after I pull fuse relay out of the fuse box under the hood. I have no idea in H**L where the short is, I NEED HELP ! Anyboby out there know something ?. rcfmnc/big red baby

Quadman · 10-07-2012, 08:59 AM

I got a wire harnes that is made for conversions for the fuel seloniod. It was like 30 bucks comes with instructions, and relay. It is complete just plug in and put the wires where it says. Just go to eBay and search fuel soleniods.

Joshb202007 · 10-25-2012, 06:53 PM

My shutoff solenoid went out on my 12v and instead of letting dodge rape me i went to tractor supply and got a throttle cable for a tiller or tractor and ran it thru firewall and attached to fuel shut off arm. Now it is a real mechanical shutoff and i could take keys with me and leave it running and locked all day long.

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