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  1. #1
    Newcomer a.lo is an unknown quantity at this point
    Join Date
    Mar 2012
    Location
    Perth, Australia
    Car:
    95 EG4 B18C

    B18C2 4 wire O2 Sensor (which wire?)

    Hi guys,

    Installed my RMF Headers today and everything's good, I had to extend the O2 Sensor wires but when I chopped it off to solder I completely forgot to mark the 2 black wires

    Now I have no idea which is which. Tried searching but haven't really been able to find any info.

    I've attached photos so thanks in advance if you can tell me which one connects to what

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  2. #2
    Member hmetro24 has an exceptional understanding hmetro24 has an exceptional understanding hmetro24 has an exceptional understanding hmetro24 has an exceptional understanding hmetro24 has an exceptional understanding hmetro24 has an exceptional understanding hmetro24 has an exceptional understanding hmetro24 has an exceptional understanding hmetro24 has an exceptional understanding hmetro24 has an exceptional understanding hmetro24 has an exceptional understanding
    Join Date
    Nov 2010
    Location
    Some where in the world
    Car:
    D14vtec Turbo
    you may mix up the black wires... if car dies after it is warm/10-30 seconds, that's the first thing to swap over and troubleshoot.. theres no way to tell one from the other by looking at them

  3. #3
    Member gen2 CRX has a substantial knowledge gen2 CRX has a substantial knowledge gen2 CRX has a substantial knowledge gen2 CRX has a substantial knowledge gen2 CRX has a substantial knowledge
    Join Date
    Apr 2007
    Location
    Sydney
    Car:
    91 ED9 CRX
    It doesn't matter which is which you can connect the black wires anyway and it will be fine.

  4. #4
    Newcomer a.lo is an unknown quantity at this point
    Join Date
    Mar 2012
    Location
    Perth, Australia
    Car:
    95 EG4 B18C
    Thanks guys that's what I wanted to hear. I just got under the car and switched between the two and both turned off the warning light.

    Cheers!

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