Pulse, reference, speed, whatever sensor

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  • Kilomph
    E30 Addict
    • Oct 2004
    • 599

    #1

    Pulse, reference, speed, whatever sensor

    I pulled mine out, and it is reading 350ohms. Could this be the reason my car isn't starting? Why would a pulse sensor only last 106k miles :x ? It doesn't look to be damaged, and when I changed my timing belt I cleaned it off so it could get clear readings.
  • DaN
    E30 Fanatic
    • Dec 2003
    • 1265

    #2
    It supposed to have resistance, couldnt find the spec but it sounds about right.
    Its a magnet with a long coil of wire around it.

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    • nando
      Moderator
      • Nov 2003
      • 34827

      #3
      what year is your car.. 88 and later only have one sensor, and the reistance is supposed to be ~540 ohms, +/- 40. the early cars are different though.
      Build thread

      Bimmerlabs

      Comment

      • AdamF 88iS
        R3VLimited
        • Oct 2003
        • 2051

        #4
        Usually what happenes is you'll acidentally yank the wire while doing the timing belt and that will kill the sensor.
        Adam Fogg- '88 M3

        Common sense- It's the new 'gifted'

        Comment

        • nando
          Moderator
          • Nov 2003
          • 34827

          #5
          Originally posted by AdamF 88iS
          Usually what happenes is you'll acidentally yank the wire while doing the timing belt and that will kill the sensor.
          or you don't put it back properly, and it starts rubbing on something.. that insulation is only so thick.
          Build thread

          Bimmerlabs

          Comment

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