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Thread: Any ECU diagram for an 87? Tracing PO add ons.

  1. #1
    Join Date
    May 2019
    Location
    Elko, NV
    Posts
    16
    My Cars
    1987 635CSI

    Any ECU diagram for an 87? Tracing PO add ons.

    PO tapped into the wires going to the ECU. He has a red dash light (must be inportant &#128513 spliced with a grey wire, and something else spliced with a light green wire. Any idea?
    Attached Images Attached Images

  2. #2
    Join Date
    Jul 2018
    Location
    Netherlands
    Posts
    292
    My Cars
    1982 628CSi
    Where do the wires lead to and what happens when you disconnect the wires?
    Undergoing restauration; my 1982 628CSi: https://www.bimmerforums.com/forum/s...628CSi-rebuild

  3. #3
    Join Date
    May 2019
    Location
    Elko, NV
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    16
    My Cars
    1987 635CSI
    … or that yes. But I kind of have no desire to be spend a few hours upside down cursing while cutting factory wiring harnesses under then the dash, through the firewall and into the engine bay … if I could just read a wiring diagram

  4. #4
    Join Date
    Aug 2010
    Location
    West Nyack, New York
    Posts
    1,391
    My Cars
    86 635csi 98 740i 96 MB

  5. #5
    Join Date
    May 2019
    Location
    Elko, NV
    Posts
    16
    My Cars
    1987 635CSI
    A legend among men. Thank you.

  6. #6
    Join Date
    May 2019
    Location
    Elko, NV
    Posts
    16
    My Cars
    1987 635CSI
    Up to 9\86 seems to be corrupted. Does it opens for you?

  7. #7
    Join Date
    Aug 2010
    Location
    West Nyack, New York
    Posts
    1,391
    My Cars
    86 635csi 98 740i 96 MB

  8. #8
    Join Date
    May 2019
    Location
    Elko, NV
    Posts
    16
    My Cars
    1987 635CSI
    No joy. I think you have a corrupted PDF file. Thank you though, really valuable stuff.

  9. #9
    Join Date
    Aug 2010
    Location
    West Nyack, New York
    Posts
    1,391
    My Cars
    86 635csi 98 740i 96 MB
    I'm sending you the links--what's corrupted?

  10. #10
    Join Date
    Sep 2014
    Location
    asheville, nc
    Posts
    151
    My Cars
    89 635CSi & 87 MB 560SL
    I have no problems opening the 4 web sites!!
    IIRC and you're using a phone to open the files, they will not open. I'm using a MAC Air with the Chrome browser.

  11. #11
    Join Date
    May 2019
    Location
    Elko, NV
    Posts
    16
    My Cars
    1987 635CSI

  12. #12
    Join Date
    Sep 2014
    Location
    asheville, nc
    Posts
    151
    My Cars
    89 635CSi & 87 MB 560SL
    No issue with that site, opens fine. Roger

  13. #13
    Join Date
    May 2019
    Location
    Elko, NV
    Posts
    16
    My Cars
    1987 635CSI
    Roger thank you. It downloaded fine from my phone. I tried from two computers and both time I got the corrupted PDF file warning. I saved it on my PC and then only I could open it. Gremlins I guess. Thank you, all set.

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