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runnin real rich

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    runnin real rich

    So its recently come to my attention that my m50 swapped e30 wouldn't run with the maf plugged in, so I disconnected it, and she runs. But what I've seen is that she's running real rich, burning gas more that what she should. After some investigation I've found that my o2 sensor has come disconnected, not only disconnected but pretty much torn apart. Open wires on both ends. I've looked all around for wiring diagrams for it with little to no luck, so I figured I'd turn to you guys.

    What I know:

    I bought the car with the swap already done(big mistake). Upon doing some vin checking, it appears engine and trans are from a 94 325i.
    Once I plug my maf in, she will idle perfect, hell I can redline it and she sounds beautiful. But the instant I put her in gear and start to drive she bogs out.

    So now my question is, could anyone help me figure out which wires go to what on my o2 sensor?
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    #2
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    Appears the second pic didn't post so here it is, colors are brown, green, yellow, black
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      #3


      page 1210.13-04. if i was you id cut off an o2 pigtail from a pullpart and solder it in. the wires should already be the same color and then you can just get an appropriate o2 sensor and install it. if you need an o2 with a longer harness the 525i e34 is longer i believe

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        #4
        Yep that's what I ended up doing yank in one off an e36 at a local yard, thanks though.

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