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Thread: Oxygen Sensor B1S2 broken wire in harness or bad ECU. help?!

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    Registered User sbcrc86's Avatar
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    Oxygen Sensor B1S2 broken wire in harness or bad ECU. help?!

    The wire#3 at the B1S2 connector on the ecu side is testing that it's not connected to a circuit with my power probe. I am also getting a code for b1s2 no activity detected with vcds. Does anybody have the pinout diagram for the ecu so I can perform a resistance test on the wire in question?

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    Registered User sbcrc86's Avatar
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    anybody who is interested here was the fix. The trace inside the ECU had a very tiny hole in it. I was able to repair the hole using a magnifying glass, a sewing needle, and liquid solder. Worked fine after.

  3. #3
    Registered User marklar182's Avatar
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    Awesome troubleshooting, and thanks for giving the fix!
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    Registered User sbcrc86's Avatar
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    Thanks and No Problem, its amazing what one can figure out with the correct diagrams!

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    Registered User lswing's Avatar
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    Thanks for sharing, much appreciated!
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    Registered User RSoverAll's Avatar
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    Wow, badass Mcguyver.

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    Registered User MaxRS6's Avatar
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    or whatever your name is...;0

    210K miles rolled

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    Registered User sbcrc86's Avatar
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    LOL Mcguyver or Chris, either way.

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