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Thread: 750 relay box question DME relays and fuel pump relays

  1. #1
    Join Date
    Nov 2019
    Location
    cincinnati
    Posts
    43
    My Cars
    89 750IL

    750 relay box question DME relays and fuel pump relays

    89 750il

    Hey Guys
    I'm in Limp mode. It is running on Cylinders 1-6 Passenger side of the V-12 left hand drive

    What I've noticed is if I push on the white relay in the below pictures that has the red wire attached to the green/yellow wire with the fuse in it the car stops

    My question is do all the relay boxes out there have this red wire with the fuse in it.?

    I;m suspecting a PO added this to bypass something ..what were they trying to bypass?


    The below the white relay connectors have a white relay in each I believe they are the DME relays.
    The black connectors hold the fuel pump relays.
    relay box1.jpg

    relaybox2.jpg

    relaybox3.jpg

  2. #2
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    54,720
    My Cars
    11/88 E32 750iL+98 E36M3
    looks not original with the red wire with inline fuse. Here you see original http://bmwe32.masscom.net/sean750/fu...t/Fuelpump.htm
    the location of the fuel pump relays can differ from model to model when it comes to the relay box near the right strut tower.
    Shogun tricks and tips for the E32 series are HERE!

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