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O2 sensors

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Rob.94, Oct 18, 2024.

  1. Oct 18, 2024 at 2:17 PM
    #1
    Rob.94

    #1
    Rob.94 [OP] Member

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    Just bought a 2012 v6 with 135k on it. It is throwing o2 sensor codes. Truck is running fine, but I want to get them replaced but how urgent is it to replace? It also has aftermarket headers/exhaust. So I’m not sure if those are throwing or not. thanks
     
    Rob.94, Oct 18, 2024
    #1
  2. Oct 18, 2024 at 7:45 PM
    #2
    Dm93

    #2
    Dm93 Test Don't Guess

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    Predator tube steps, Ranch Hand grill guard, Magnaflow CatBack exhaust, Toyota tool box & bed mat, 2LO Module by @Up2NoGood, Rearview Compass/Temp Mirror, Tune by @JustDSM.
    What code(s) is it setting exactly?
     
    Dm93, Oct 18, 2024
    #2
    TnShooter likes this.
  3. Oct 19, 2024 at 7:02 AM
    #3
    Rob.94

    #3
    Rob.94 [OP] Member

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    P2241, p2238, p2197 are the codes I’m getting
     
    Rob.94, Oct 19, 2024
    #3
  4. Oct 19, 2024 at 8:19 PM
    #4
    TnShooter

    #4
    TnShooter The TacomaWorld Stray

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    How long after the headers and exhaust did the codes appear?
     
    TnShooter, Oct 19, 2024
    #4
  5. Oct 20, 2024 at 7:08 PM
    #5
    Rob.94

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    Rob.94 [OP] Member

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    I am not 100% sure I purchased the truck with them on.
     
    Rob.94, Oct 20, 2024
    #5
  6. Oct 20, 2024 at 8:38 PM
    #6
    Dm93

    #6
    Dm93 Test Don't Guess

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    2014 DC OR 6spd 4x4
    Predator tube steps, Ranch Hand grill guard, Magnaflow CatBack exhaust, Toyota tool box & bed mat, 2LO Module by @Up2NoGood, Rearview Compass/Temp Mirror, Tune by @JustDSM.
    Have you inspected the wiring and sensors? Being it has aftermarket exhaust I'd start there, those codes have to do with the upstream AFR sensor circuits.
     
    Dm93, Oct 20, 2024
    #6

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