Electric Fuel Pump Wiring
Thread Starter
Safety Car
Joined: Mar 2009
Posts: 3,558
Likes: 4
From: Oakland California
Electric Fuel Pump Wiring
Hi guys, I'm getting ready to install an electric fuel pump on the Vette and am in need of some help. Where is the best place to get a 12V source for the pump? People with electric fuel pumps on their Vettes please chime in. Thank you
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Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
I"m going to ASSume you are still using a carb, so reply to that standard....
you need a oil pressure switch that will OPEN the circuit and kill the pump if engine stops for ANY reason....so the Pink wire of your ignition feeding a HEI...OR the yellow wire from your points dizzy car...can be used through this OIL pressure switch to the fuel pump.....
hope this is clear enough.....
if you have FI well the computer controls that pump relay....
you need a oil pressure switch that will OPEN the circuit and kill the pump if engine stops for ANY reason....so the Pink wire of your ignition feeding a HEI...OR the yellow wire from your points dizzy car...can be used through this OIL pressure switch to the fuel pump.....
hope this is clear enough.....
if you have FI well the computer controls that pump relay....
Thread Starter
Safety Car
Joined: Mar 2009
Posts: 3,558
Likes: 4
From: Oakland California
I"m going to ASSume you are still using a carb, so reply to that standard....
you need a oil pressure switch that will OPEN the circuit and kill the pump if engine stops for ANY reason....so the Pink wire of your ignition feeding a HEI...OR the yellow wire from your points dizzy car...can be used through this OIL pressure switch to the fuel pump.....
hope this is clear enough.....
if you have FI well the computer controls that pump relay....
you need a oil pressure switch that will OPEN the circuit and kill the pump if engine stops for ANY reason....so the Pink wire of your ignition feeding a HEI...OR the yellow wire from your points dizzy car...can be used through this OIL pressure switch to the fuel pump.....
hope this is clear enough.....
if you have FI well the computer controls that pump relay....
. Yup, it's for a carburetor setup.. So, the 12V source will be the wire coming from the distributor right?
Safety Car
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
Another thing you might want to do is wire an inertia cutoff switch in series with the pink wire. That way if there is a crash and the engine happens to be able to running the switch will kill power to the fuel pump. You can get one from any junkyard Ford Taurus. They are in the trunk behind a removable panel. I have one wired in to my car to cut power to the ecu so everything shuts off.
Rick B.
Thread Starter
Safety Car
Joined: Mar 2009
Posts: 3,558
Likes: 4
From: Oakland California
Thanks guys. This information should be lots of help. The pump gets here tomorrow I just picked up a Performer RPM intake and a couple of other goodies, and I can't wait to put everything on the Vette
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Burning Brakes
Joined: Aug 2008
Posts: 878
Likes: 55
From: Deep South Denmark
That must be what the wire going to the "NC" terminal in rosslato's schematic is for. Connect that to the starter terminal that only has power when the key is in the crank position and it will activate the pump relay while cranking or until the oil pressure switch activates.
Last edited by Danish Shark; Oct 8, 2011 at 02:50 AM. Reason: NO to NC
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