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What stops the fuel pumps after they prime?

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    What stops the fuel pumps after they prime?

    When I turn the key to the second position, the fuel pumps come on, and then stay on. I can also hear/feel the fuel pump relay clicking at about the rate of a turn signal while the pumps are going.

    It stops when I try go to start, but the engine does not crank over.

    I've tried swapping the dme, fuel pump relay, and ignition switch. I can't figure out from the wiring diagram what would tie these two together other than the ignition switch.
    Last edited by thebutterson; 05-11-2012, 04:37 PM.

    #2
    Check your grounds ;)
    85' 318i ~The Bronze Bomber (FrankenM10 with a Forced Future :wgaf:)

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      #3
      You Sir, deserve a beer!!!! I never cleaned off the ground on the intake manifold when I painted it. I scraped the paint off that and took a wire brush to the rest of them and it cranks with no stupid fuel pump constant prime. Hit me up if you're ever in the Tacoma/Seattle area!

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        #4
        I should do this too.
        '87 325e 2.7i/5spd
        '02 Subaru outback (Still smells like dirty hippie)
        '86 635csi (Sold)
        '87 4KcsQT (Sold)
        '84 318i (Sold)

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