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O2 sensor main relay

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    O2 sensor main relay

    So I was testing output on my main relay for my o2 sensor and have two ground and one power and then there is one that does nothing. If your looking at it from the driver side fender it's the left connector that isn't doing anything. I'm assuming power so there is two power and two grounds but idk. Hoping someone could tell me how the readout is supposed to be. It's an 86 es

    #2
    You can trouble shoot the relay using the wiring diagrams from http://wedophones.com/BMWManualsLead.htm
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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      #3
      Pages 31 & 34 have all the info.

      Transaction Feedback: LINK

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        #4
        Nice. Thanks

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