91 318is to M20 swap

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  • kamotors
    R3V OG
    • Nov 2007
    • 7102

    #1

    91 318is to M20 swap

    well, I've run into another issue with a wiring problem.
    Its an 89 325i wiring harness and complete M20 motor into a 91 318is body.
    Motor cranks over just fine, Megasquirt is getting a good signal and is online and running my correct base tune that I use.
    The fuse box plugged right into the wiring harness on the M20 as well as the battery box area. There is no c104 connector to be found and i'm getting no fuel.


    whats needed to get the fuel pump going?
    Last edited by kamotors; 11-17-2013, 11:51 AM.


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  • kamotors
    R3V OG
    • Nov 2007
    • 7102

    #2
    I'm stumped I'm getting rpm signal and everything, and the fuel pump should be powered from the c101 but its not priming or pumping.


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    • kamotors
      R3V OG
      • Nov 2007
      • 7102

      #3
      bump


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      • kamotors
        R3V OG
        • Nov 2007
        • 7102

        #4
        Got it running, previous owner had a few missing fuses. started right up.

        so just to make it clear to anyone doing the swap. There is no wiring needed to go from 89 325i -91 318is, its all plug and play.


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