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Thread: So I hotwired my fuel pump and then.......

  1. #61
    Yeah,
    I cant tap it on top of the assembly because of the fuel tank placement, however I did follow the wire from the mfi to my back seat then to right above the fuel tank so Iam thinking it was the same wire. I tested voltage at the MFI and then at right above the fuel tank and it was the same. I may have really screwed up though, its possible it wasnt the same wire. Grrr.
    Ill definitely put the relay right above the fuel tank when I get this figured out. Im trying to find a good ECU to swap out. Seems like all the reasonable ones are 'no warranty no guarantees' so Id like to be sure before I spend that much on a stock part.

  2. #62
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    Quote Originally Posted by 92EuroDiamante View Post
    Thank you!
    Any idea which one I should test for specifically (dont want to screw around with the frail stock wires more than I have to)
    The car does get spark, just not fuel, and then when I hotwire the fuel pump it starts up but doesnt idle then dies.
    As per the diagram above you need to unplug the relay and unplug the ECU and use a multimeter to make sure the wires between pin 8 and 108 are fine, between pin 4 and pin 12 & 25, pin 10 should be a ground. Also check pin 110 on the ecu harness and make sure it's also earthed/grounded.

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