Fuel pump wiring question

Discussion in 'Fox Engine Swaparoo' started by colorado456, Dec 24, 2011.


  1. colorado456

    colorado456 New Member

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    I am in the process of swapping my 88 5.0 into a 91 4 banger car. I've got the under hood, dash and trans harness' swapped.

    I dont have any fuel pressure and dont hear the pump. I hear the relay located by the ecu clicking. But the one under the seat isnt doing anything.

    I am not the most electrical savy person. Any help is greatly appriciated!
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  2. colorado456

    colorado456 New Member

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    so i've found the problem or problems lol.... I double checked all the wiring. One of the two plugs in a black box under the dash was not supposed to be used. I had to switch with another plug that is identical. Boom fuel pump on

    After that it still wouldnt fire....then realized I had the fuel lines backwards.

    She runs great now!!!
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