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O2 sensor harness wire diagram for 4 cyl

Discussion in '3rd Gen. Tacomas (2016-2023)' started by simon09, May 28, 2022.

  1. May 28, 2022 at 3:32 PM
    #1
    simon09

    simon09 [OP] New Member

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    I have a 2018 4 cyl taco and renectly somone stole my catalytic converter and as he did it instead of unplugging the o2 sensor he cut the harness. Now after a crap ton of money spent and me ready to give up i ask of you fellas taco fans for help
    my senor has a black,black,blue white cable while the harness connector has been cut so i had to buy a new one. the wires from the harness are black,grey,white,blue. They dont seem to be color coded because i tried match and just switching the black with grey but it didnt work. Can anyne just take a look at their taco and be able to tell me hhow their sensors and harness are wired.
    its bank 1 sensor 1 .
     
  2. May 28, 2022 at 8:54 PM
    #2
    GrundleJuice

    GrundleJuice Well-Known Member

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    [S]Un-Molested[/S] Lightly Molested
    @caribe makaira for wiring harness colors? I looked at mine, I don't think I could see any wire colors without some significant disassembly, but I have a 2GR anyway, so prob not a great example.
     
  3. Sep 23, 2022 at 11:01 AM
    #3
    Crasyrapy

    Crasyrapy Member

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    Hello there , the same situation happened with a friend from work. May ask you if you finally found a solution for this ??
     
  4. Aug 30, 2024 at 6:38 AM
    #4
    Saint_Rob21

    Saint_Rob21 New Member

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    Riley
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    Did anyone find a solution for this. Going through the same situation.
     
  5. Aug 30, 2024 at 7:00 AM
    #5
    Speedytech7

    Speedytech7 Toyota Cult Ombudsman

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    It's less Tacoma and more mod
    Here is the engine controls wiring diagram for a 2018 4WD 4cyl tacoma
     

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