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How to remove O2 sensor connector

Discussion in '1st Gen. Tacomas (1995-2004)' started by 95TacomaNewb, Aug 14, 2025 at 4:29 PM.

  1. Aug 14, 2025 at 4:29 PM
    #1
    95TacomaNewb

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    95TacomaNewb [OP] Well-Known Member

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    1995 Tacoma V6

    I'm getting code P0136 and want to test the downstream O2 sensor but having trouble removing it and don't want to break 30 year old plastic. It looks like there is a tab I need to press with a screwdriver on the right side of this photo - is that correct? And if so do I push the tab in towards the middle of the connector, or towards the outside?

    IMG_5074.jpg
     
    95TacomaNewb, Aug 14, 2025 at 4:29 PM
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  2. Aug 14, 2025 at 4:31 PM
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    02hilux

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    02hilux What do you mean there’s no road, I’m here

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    02hilux, Aug 14, 2025 at 4:31 PM
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  3. Aug 14, 2025 at 4:39 PM
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    02hilux

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    02hilux What do you mean there’s no road, I’m here

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    But yes, the clip is what holds the pigtail together
     
    02hilux, Aug 14, 2025 at 4:39 PM
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  4. Aug 14, 2025 at 4:41 PM
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    95TacomaNewb

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    95TacomaNewb [OP] Well-Known Member

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    Thanks, do I press the clip towards the outside of the connector? I can't tell if the clip is on the O2 sensor side of the connector.
     
    95TacomaNewb, Aug 14, 2025 at 4:41 PM
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  5. Aug 14, 2025 at 4:45 PM
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    02hilux

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    02hilux What do you mean there’s no road, I’m here

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    IIRC, the push tab/clip is on the body harness side. You pressed it in to lift the tab up from the latch. The latch is on the sensor pigtail side. A little elbow grease (wiggle) while holding both connector should do it.
     
    02hilux, Aug 14, 2025 at 4:45 PM
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  6. Aug 14, 2025 at 4:47 PM
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    TnShooter

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    TnShooter The TacomaWorld Stray

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    CAREFULLY slide a THIN small flat blade screw driver between the connector at the arrow in the picture below.
    Then pull out on the connector.

    There is actually a button you press on the back of the connector that "pivots" and releases the clip.
    But once they get old, they get hard and don't pivot too good.

    IMG_5074.jpg
     
    TnShooter, Aug 14, 2025 at 4:47 PM
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    ControlCar likes this.
  7. Aug 14, 2025 at 4:54 PM
    #7
    95TacomaNewb

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    95TacomaNewb [OP] Well-Known Member

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    Success! Thank you both
     
    95TacomaNewb, Aug 14, 2025 at 4:54 PM
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    ControlCar likes this.

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