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2002 Tacoma O2 Sensor

Discussion in '1st Gen. Tacomas (1995-2004)' started by Tomato1981, Nov 12, 2017.

  1. Nov 12, 2017 at 7:10 AM
    #1
    Tomato1981

    #1
    Tomato1981 [OP] Well-Known Member

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    Tomato1981, Nov 12, 2017
    #1
  2. Nov 12, 2017 at 8:34 AM
    #2
    Slickster

    #2
    Slickster greentaco

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    94025
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    2002 pre
    what engine do you have? sr5? 2vz?3vz?
    if it is a 3vz there are 2 sensors and looks like you might have replaced the wrong sensor with the wrong part number.
    on this engines there is one sensor right by the exhaust maniful and then there is another sensor down by the passenger door with is the one in that needs to be checked or replace.
    part number is
    $61 Denso 234-4189 Oxygen Sensor
    Denso 234-4189 Oxygen Sensor
     
    Slickster, Nov 12, 2017
    #2
  3. Nov 12, 2017 at 8:40 AM
    #3
    Tomato1981

    #3
    Tomato1981 [OP] Well-Known Member

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    I have the 3.4L V6. Wrong part?
     
    Tomato1981, Nov 12, 2017
    #3
  4. Nov 12, 2017 at 9:45 AM
    #4
    Slickster

    #4
    Slickster greentaco

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    yes different part
     
    Slickster, Nov 12, 2017
    #4
  5. Nov 13, 2017 at 4:52 PM
    #5
    ScrapmanIndustries

    #5
    ScrapmanIndustries Well-Known Member

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    I too may be in need of a sensor. its a 98 2.7 regular cab. the nuts rusted completely off. needless to say its gonna be a bitch to change. did you also have that problem?
     
    ScrapmanIndustries, Nov 13, 2017
    #5
  6. Nov 15, 2017 at 11:49 AM
    #6
    Tomato1981

    #6
    Tomato1981 [OP] Well-Known Member

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    The hardest part was unlocking the electrical harness kit
     
    Tomato1981, Nov 15, 2017
    #6

Products Discussed in

Denso 234-4189 Oxygen Sensor
$60.51
Denso 234-9001 Upstream Air Fuel Ratio Oxygen Sensor with 10.6” 4-Wire Harness, for Auto Trans Equipped Vehicles
$144.28
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