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how to replace rear O2 sensor on 2003 xtracab?

Discussion in 'Technical Chat' started by jmm2003, Aug 24, 2008.

  1. Aug 24, 2008 at 2:48 PM
    #1
    jmm2003

    jmm2003 [OP] New Member

    Joined:
    Aug 24, 2008
    Member:
    #8732
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    2
    Northeast New York
    Vehicle:
    2003 Tacoma 2.7 4WD
    I have a P0136 error code with a readout of bank 1 sensor 2 sensor malfunction. I learned that this is the rear O2 sensor. I found the sensor under my truck, but the wiring runs from the exhaust pipe into a rubber gromet in the floor under the passenger seat. I want to replace the sensor myself but do not know where I should look for the connector. Do I need to remove the passenger seat to find the connector?
    Thanks,
    Jim.
     
  2. Aug 24, 2008 at 3:05 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Removeing the passenger seat is easy. The you would need to remove the door trim, and you should be able to reach it under the carpet from there. Its an easy thing to do. :)
    PS Welcome to TW!!!!
     
  3. Aug 24, 2008 at 4:28 PM
    #3
    jmm2003

    jmm2003 [OP] New Member

    Joined:
    Aug 24, 2008
    Member:
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    Messages:
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    Northeast New York
    Vehicle:
    2003 Tacoma 2.7 4WD
    Thanks for sharing your know-how and thanks for the Welcome. I will order a sensor and give it a try.
     
  4. Feb 1, 2009 at 3:52 AM
    #4
    SNIPES

    SNIPES Well-Known Member

    Joined:
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    #9221
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    NY
    Vehicle:
    04 Access Cab
    Did changing just the rear 02 solve the problem? I have been told this code may also be a faulty cat....:mad:
     
  5. Feb 1, 2009 at 4:46 AM
    #5
    dud122

    dud122 rabble rabble rabble

    Joined:
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    Dan
    Riverdale Park, MD
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    ome lift'd, bent-up rear, elite front, revenge fab'd sliders, camburg uca's, safari snorkle, FJ TRD wheels, safari bed basket, truxedo'd, bed rug'd... more to come

    did you order that sensor yet??? I'm also in NY and have a NIB sensor i can give you a deal on.
     
  6. Feb 1, 2009 at 5:58 AM
    #6
    Janster

    Janster Old & Forgetful

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    Jandy
    Lancaster, PA
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    2007 4.0L 4x4 TRD Sport Access Cab A
    Advantage Torza top (tri-fold), Husky floor mats, RuffTuff seat covers, C2C hood struts, Homelink mirror, USA Spec PA15-Toy (120gig Classic & 8gig nano), Garmin Nuvi 660, Protecta Bed mat, Pop-n-lock, TSB Springs, Scangauge II, Heated drivers seat, Fumoto drain valve, Aries pushbar, PIAA 540 fog lights, Hood scoop grahics, Flowmaster 50 series dual catback exhaust, RainX Latitude windshield wipers, Husky rear floor liner (ontop of folded down seats). Console Vault.
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