powering electric fuel pump for EFI

[threadchaser]

I have installed a painless wiring harness that has the relays and wiring for the electric fuel pump that is in the tank. I am in the process of installing a holley sniper EFI that also has wiring for the fuel pump, I would like to use the wiring from the painless kit since it is installed under the dash and out of the way. Is there a easy way to eliminate the sniper wiring other than just removing the relay, I would like to eliminate as much extra wiring as I can. I am installing the Hyper Spark ready to run distributor, Cd Box and coil. I would like to pull the wires that I don't need out of the 7-pin connector that goes to the EFI to remove the relay and wiring that isn't needed. Thanks for any help.

 

[frdboy]

I would recommend using the Sniper to run the pump. Is the painless always on with the key on? The nice part having the sniper is it only runs when the engine is running except for the 2 second prime at key on. You could have the sniper trigger the painless relay and still use most of the painless wiring.

 

[Broncobowsher]

The Sniper pump control is superior over the painless, as far as logic goes.
Should not be too hard to marry the two together.

 

[Steve83]

This shows several correct ways to wire fuel pumps:

(click this text)

 

[ntsqd]

Power it how the Sniper instructions should say to do so.

 

[Broncobowsher]

Power it how the Sniper instructions should say to do so.

If you want the sniper to run the fuel pump as it should, do this.

For the physical piece of wire, either the Sniper or the painless. I would find the dash side of the fuel pump circuit in the painless harness, move it over to the sniper relay.