E-FUEL WIRING AGAIN

diesel50 · May 29, 2014

I have most of the parts I need to get my e-fuel going. The one part of this project that iam having problems with is the wiring. This is the one place that Iam really weak at. I've read a lot of different write ups on different e-fuel projects, and still have problems where I come off the oil pressure switch as to where I would find hot wire, key on power, etc.....Pictures would go along ways if anyone has any. Thanks

diesel50 · May 30, 2014

ANYBODY????

m j · May 30, 2014

there are a lot of ways to do it.
I like the method that looks factory and grounds the relay through the oil pressure switch like the strictlydiesel wiring harness
http://www.strictlydiesel.com/p-2804-obs-fuel-pump-harness.aspx
if wiring is not your strength then that kit gets it done.

Arisley · May 30, 2014

I agree. That is a simple, plug and play fix.

blaze42069 · May 30, 2014

m j said:
there are a lot of ways to do it.
I like the method that looks factory and grounds the relay through the oil pressure switch like the strictlydiesel wiring harness
http://www.strictlydiesel.com/p-2804-obs-fuel-pump-harness.aspx
if wiring is not your strength then that kit gets it done.

Strictly gets my vote! Great products and killer support.

diesel50 · May 31, 2014

I appreciate the response guys..... I wish I would have saw that kit sooner . However I purchased the oil pressure switch, relay, wire, etc....Didn't want to spend the money on parts again....The oil pressure switch I have has 3 terminals and theirs only 2 interesting.....Again I appreciate your input. Iam basically down to 3 wires that connect to the oil pressure switch.....

m j · May 31, 2014

so test them with a DVOM with air pressure from your compressor to switch the sender.
you do not need to buy the strictly to wire it similarly

blaze42069 · May 31, 2014

I didn't use a pressure switch, I have a factory inertia switch tied into the power going to the relay. That will shut off the pump if I have an accident. But there's many different ways to wire your pump. And just as many opinions of the best way to install.

ghohouston · May 31, 2014

I wired mine pretty much the same way everyone else does, just didn't use an oil pressure or inertia switch

blaze42069 · May 31, 2014

ghohouston said:
I wired mine pretty much the same way everyone else does, just didn't use an oil pressure or inertia switch

I was gonna do it that way too, but I didn't like the idea of 200gph of fuel shooting like a fire hose if God forbid something happpened. Plus I had an inertia switch and harness laying around the shop.

m j · Jun 1, 2014

I bought the strictly harness but I didnt use much of it.
I mounted the fuses and relay in the underhood fusebox as per a thread on one of these forums, I think TomS either wrote it or reposted it in a tech section.
I did use both the timer and pressure switch from the harness but as I am using an in tank pump, like a gasser, I had to run my own feed to the rear tank to power the pump

diesel50 · Jun 5, 2014

This is the diagram iam going to use. Where would I find the key switch (hot) wire and (trigger) wire on starter for power while cranking? This is where I not sure about?

ghohouston · Jun 6, 2014

A lot of people use the fuel bowl heater wire for the switched power

blaze42069 · Jun 6, 2014

There's a key on power wire tied in to the tank selector switch on the dash. I used the method as mj and did the Tom S mod through the power distribution box. Then found the power at the switch after I was done.