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S52 OBD II Engine control relay

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    S52 OBD II Engine control relay

    Getting my car all ready, hopefully will be running soon. Anyway once I turn the key on the Engine control module relay powers up. It is activated by the brown wire coming from pin 73 in the DME. Now my problem is that when I shut the key off the relay stays powered up. Question is how do I get the relay to deactivate when the key is turned off.

    Any info you have would be a great help.

    TIA

    #2
    i want to see your wiring diagrams. can you post them? hard to give you advice without that.
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    Gigitty Gigitty!!!!

    88 cabrio becoming alpina b6 3.5s transplanted s62
    92 Mtech 2 cabrio alpinweiss 770 code
    88 325ix coupe manual lachsilber/cardinal
    88 325ix coupe manual diamondschwartz/natur
    87 e30 m3 for parts lachsilber/cardinal(serial number 7)
    12 135i M sport cabrio grey/black

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      #3
      Originally posted by flyboyx View Post
      i want to see your wiring diagrams. can you post them? hard to give you advice without that.
      I think I figured it out, I had power going to the red/white wire in pin 8 of the X20. when I pulled the fuse I had it wired to it worked fine. However, i can post my wiring diagrams as well just for a little more public knowledge.

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        #4
        Originally posted by s52e30m3 View Post
        I think I figured it out, I had power going to the red/white wire in pin 8 of the X20. when I pulled the fuse I had it wired to it worked fine. However, i can post my wiring diagrams as well just for a little more public knowledge.

        yes, please do so. can't hurt.
        sigpic
        Gigitty Gigitty!!!!

        88 cabrio becoming alpina b6 3.5s transplanted s62
        92 Mtech 2 cabrio alpinweiss 770 code
        88 325ix coupe manual lachsilber/cardinal
        88 325ix coupe manual diamondschwartz/natur
        87 e30 m3 for parts lachsilber/cardinal(serial number 7)
        12 135i M sport cabrio grey/black

        Comment

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