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Fuse 10 - Not reversing light harness related

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    Fuse 10 - Not reversing light harness related

    Fuse 10 keeps blowing - at first it was intermittent, now it blows anytime I switch the car to the run position.

    Car Background - it is a racecar, most of what I see related to fuse 10 is removed, so I've been paying special attention to how I terminated those items and making sure I don't have a potential short from those terminations. The only major wiring change in the last 4 years was the addition of a kill switch this winter.

    I keep seeing however that fuse 10 is also related to "fuel delivery" however cannot find anything in the Bentley that tells me what part of the fuel delivery circuit fuse 10 is associated with.

    While it may be unrelated, I have noticed the engine sounds off song approaching revlimiter @ WOT. But seeing that fuel delivery circuit associated with fuse 10 makes me wonder if these 2 problems are related, I don't see an issue with fuel pressure however from my gauge in realtime, but I can't speak for volume.

    I keep going through the obvious but I am not seeing anything on the "easy" common areas that plague road car's fuse 10.

    I'm not claiming defeat yet, however if I truly am down to just an instrument cluster and tach on that circuit, (no check panel, no cruise, no OBC, no reverse lights,) then I may keep fuse 10 pulled and run an aftermarket tachometer.

    #2
    Use the diagrams from http://wedophones.com/BMWManualsLead.htm to trace out what fuse 10 powers.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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      #3
      Yes I also recommend the factory ETM manual, it will outline every circuit connected to fuse 10. Unplug one at a time until your current draw is greatly reduced, then you will know which circuit is causing the issue.

      It can also be failed insulation touching the grounded chassis.
      Owner - Bavarian Restoration
      BMW and European Electronics Repair and Restoration
      www.BavRest.com
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