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    Quick Links: Oil Plug Seal O2 (Air/Fuel Ratio) Sensor Replacement, Bank 1 - 5VZ-FE, w/ Manual Transmission Transmission fluid; GL-4, GL-5 1st gen stereo adapter; now looking for console part (cover) My OBD2 won't communicate with my truck but Autozone's does 2000 Tacoma o2/air fuel sensor mystery... help

2004 3.4L Upstream O2 sensor (B1/S1) ???

Discussion in '1st Gen. Tacomas (1995-2004)' started by Dmillersmfd, Nov 7, 2015.

  1. Nov 7, 2015 at 10:47 AM
    #1
    Dmillersmfd

    #1
    Dmillersmfd [OP] Member

    Joined:
    Aug 26, 2015
    Member:
    #162724
    Messages:
    13
    Gender:
    Male
    First Name:
    Dustin
    Vehicle:
    2004 Tacoma
    Scanned my "Check Engine" light and shows B1/S1 O2 sensor is bad. I went to change it out the other day and it appears the connection is made at the top of the transmission. I have tried from every angle I can think of and can't seem to get my fat meat hooks in to access the connection. Any advice on how to make this happen. I really don't want to take it in and have to fork out $100+ in labor to have someone else do it.
     
    Dmillersmfd, Nov 7, 2015
    #1
  2. Nov 7, 2015 at 12:56 PM
    #2
    bry838

    #2
    bry838 Well-Known Member

    Joined:
    Sep 3, 2014
    Member:
    #137527
    Messages:
    2,403
    Gender:
    Male
    oregon
    Vehicle:
    '00 tacoma 2.7 4x4 reg cab 5speed x's 2. '01 T4R 3.4 5 speed
    Some peeps go in through the shifter boot from the inside of the cab...
     
    bry838, Nov 7, 2015
    #2

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