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Please HELP out, m42 to m20 problems

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    Please HELP out, m42 to m20 problems

    Ok, I have been searching for a few hours - seriously and I have had no luck. I have a 1991 318is that I swapped an m20 into. The c101 from the m20 has two extra pins in positions 2 & 10 on the c101 terminal (with a green and a blue wire) that the 318is fusebox wiring doesn't have (they are blank). The fuel pump does not appear to be working either- what have I overlooked or done wrong? I even poured over the Bentley manual with no luck, I know its probably something stupid- but for the life of me I am failing miserably!!!
    If you can't build it, you have no business driving it! :hitler: 1994 530iT Cashmere Beige Metallic

    #2
    Pins 2 & 10 of C101 are oil level static and oil level dynamic respectively.

    The fuel pump is controlled by the DME and won't run unless the DME sees timing data from a rotating engine.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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      #3
      Thanks Jim!
      I did find that out, and found my no start was due to me being sleep deprived and having the fuel feed and return lines swapped... Now I just found the installation manual for the Miller MAF, so I need to modify the ecu pin out slightly (which hopefully will help the car not run @ 3k RPM...) I'm starting to realize why everyone foo-foos the m42 to m20 swap! :drink:
      If you can't build it, you have no business driving it! :hitler: 1994 530iT Cashmere Beige Metallic

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