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bad o2 sensors

Discussion in '4 Cylinder' started by travelcarp, Sep 4, 2012.

  1. Sep 4, 2012 at 11:12 AM
    #1
    travelcarp

    travelcarp [OP] New Member

    Joined:
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    First Name:
    joe
    south carolina
    Vehicle:
    1997 tacoma 2.4 base 2wd
    I have code 0125 on 97 2.4 and have changed the ect and thermostat and still have code. Will o2 sensors set this code and how much will it effect my mpg.
     
  2. Sep 6, 2012 at 11:10 AM
    #2
    BamaToy1997

    BamaToy1997 ASE Master Tech Vendor

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    Bill
    Navarre, FL
    Vehicle:
    1997 Tacoma 4X4 AKA "Blue Beast"
    Multi-point tow hooks, new bored 2.7L engine, custom paint. 3 inch adjustable Fabtech front coils, 2.5 inch rear AAL. Front Aussie locker. LED bed lights. Full LED conversion interior and exterior. Relentless Fabrication front and rear bumpers. 4X4innovation sliders. BAMF bed rack. CVT rooftop tent.
    The P0125 is a common code that gets misdiagnosed on the Toyota. If you have already changed the thermostat and the ECT (which is located on the back of the head, not the one on the side) then you are most likely looking at the O2 sensor located before the catalytic converter.
     
  3. Sep 12, 2012 at 12:45 PM
    #3
    travelcarp

    travelcarp [OP] New Member

    Joined:
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    #86215
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    2
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    Male
    First Name:
    joe
    south carolina
    Vehicle:
    1997 tacoma 2.4 base 2wd
    Thanks Bill but where is the 2nd ect located on head. I changed the one on the side.
    Thanks travelcarp
     
  4. Sep 12, 2012 at 12:49 PM
    #4
    Steves104x4

    Steves104x4 Well-Known Member

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    Steve
    Buffalo NY
    Vehicle:
    2010 RC 2.7 4x4
    BUCKLE UP! It makes it harder for Aliens to pull you out of your Truck.
    Personally, I look at changing out the O2 sensor(s) every 100k or so; you're lucky if you can go much longer than that. Oh ya, Bill, you ROCK!
     
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