Proper hook-up for a facet fuel pump

[chrisreale]

I think mine is installed wrong. Can you just ground the neg to the chassis, and run the pos straight to the battyer pos post?

[Conrad W Peden]

Run the pos. to 'Keyed' power or the old fuel pump relay. Otherwise the pump will always be on.

I ran mine to the fuse box and hooked it up to keyed power.

Then I chucked out the facet pump and got a nice adjustable diaphram pump.

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CWP/VIR
72 914 L20E in rusto.
73 914 L20E 2.0L in resto.
http://members.rennlist.com/a914lover

[Kevin@ojai.net]

If the pump is in the engine compartment you could run the + line to the + side of the coil, and just ground out the pump to the chassis. If you wana run it to the battery I am assuming you have it on the passenger side of the engine compartment right? If so that would be the simplest way to get your pump to turn on/off with the ignition.

[Dave at Pelican Parts]

If it's in the engine bay, I suggest using the old FI power relay to power your pump. It will get switched on when the ignition is on. One of the pins of the four-pin plug on the relay board is the output there (check the wiring diagram for which one), so you can simply plug a 1/4" female spade connector onto it.

No muss, no fuss--and you're not hanging extra stuff off the coil. It's probably not a bad thing to hang stuff off it, but the idea just makes me uneasy.

--DD

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Pelican Parts 914 Tech Support

A few pics of my car: http://www.pelicanparts.com/gallery/Dave_Darling

[Jim Smolka]

On my car, I used the existing Fuel Pump Relay. The trick is to find the number III pin on the T4 connector and connect a wire to it via a stake-on connector. Then, connect the other end to ground. This should make the ground path to power the coil that pulls in the fuel pump relay power contacts.

[oc92]

a good anti-theft device: put a switch in the ground circuit of the pump. locate that switch and grounding point under drivers seat. break circuit (off) when parked, flip on when about to start