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E28 M54 Swap Wiring

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    E28 M54 Swap Wiring

    I recently picked up an e28 (1986 528e to be exact). I got it for a really good price and it just so happens to have a blown headgasket and plenty of rod knock so I started looking at swap options.

    Using Jordan's M54 thread (https://www.r3vlimited.com/board/for...m54-swap-guide) and E28 goodies S54 Swap (https://e28goodies.com/insert-some-savage-plastic-here/) as my main references as well as going through the pinout schematic I put together a wiring diagram that I need some feedback on. The rows highlighted in yellow are the ones that I have questions on

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    From Jordan's thread the Unloader Relay and Start signal for the E30 are on separate circuits however on the E28 they circuits are tied together. So would I just tie both pins to C101 Pin 18?

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    X6011 Pin 6 and X6004 Pin 26 need switched 12V and I believe I've found them through pins C101-6 and C101-12 with Pin 6 coming from a fused source. I just wasn't sure what the difference was on the X6011 and X6004 side in terms of which to connect to.


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    Another question was the ABS (X6011, Pin 7) from the schematic it doesn't look like it's tied into the main harness of the E28 so would this be necessary?


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    My Daily Driven 318is

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    For the fuel pump if C101 Pin 7 is left undisturbed could pin 20 of the ECU be tied into X6004 Pin 10?


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    Below are just reference pics to verify the right pin out

    Alternator

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    Oil Pressure/Coolant

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    Tach

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    If the schematic is hard to see here's the electrical troubleshooting guide (http://wedophones.com/Manuals/BMW/19...g%20Manual.pdf)

    Stater/Unloader = p.26
    Fuel Pump = p.32
    ABS = p.35,36
    Switch Power = p.16, 31
    Tach = p.58
    Oil Pressure/Coolant = p.59
    Alternator Lamp = p.25


    On the ms43 side EWS, speed signal, possibly ABS will be removed. Any feedback is appreciated!


    My Daily Driven 318is

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