1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

exhaust sensor

Discussion in '1st Gen. Tacomas (1995-2004)' started by houndsmen, Dec 15, 2010.

  1. Dec 15, 2010 at 10:15 AM
    #1
    houndsmen

    houndsmen [OP] Well-Known Member

    Joined:
    Sep 8, 2009
    Member:
    #22461
    Messages:
    89
    Gender:
    Male
    My check engine light came on in my 2001 tacoma 3.4 so I took it down to autozone and it threw a code saying it was an rf sensor or somethin like that. its the sensor before the o2 its where the exhaust comes down outta the manifold. do you guys know the proper name for it? do you guys know where i can get a cheap one??? they are $170 at my local parts store...
     
  2. Dec 15, 2010 at 10:19 AM
    #2
    houndsmen

    houndsmen [OP] Well-Known Member

    Joined:
    Sep 8, 2009
    Member:
    #22461
    Messages:
    89
    Gender:
    Male
    does it matter which one i get? or are they both the same?
     
  3. Dec 15, 2010 at 2:21 PM
    #3
    houndsmen

    houndsmen [OP] Well-Known Member

    Joined:
    Sep 8, 2009
    Member:
    #22461
    Messages:
    89
    Gender:
    Male
  4. Dec 15, 2010 at 2:23 PM
    #4
    tacomaman06

    tacomaman06 Carolina Alliance: Enforcer

    Joined:
    May 1, 2007
    Member:
    #1475
    Messages:
    26,258
    Gender:
    Male
    First Name:
    Will
    York,South Carolina
    Vehicle:
    '16 Tundra TRD Pro
    getting there....
    go to rockauto.com......their prices are best around. sounds like you need the bank 1 sensor 1 which is the upstream sensor.
     
  5. Dec 15, 2010 at 2:40 PM
    #5
    tacomaman06

    tacomaman06 Carolina Alliance: Enforcer

    Joined:
    May 1, 2007
    Member:
    #1475
    Messages:
    26,258
    Gender:
    Male
    First Name:
    Will
    York,South Carolina
    Vehicle:
    '16 Tundra TRD Pro
    getting there....
    on the first gens...the o2 sensor bolts on...doesnt screw in.i would stay away from the universal ones tho...and stick with denso oem sensors for sure. our trucks dont like aftermarket sensors too much.
     
  6. Dec 15, 2010 at 3:59 PM
    #6
    TacomaJPP

    TacomaJPP To secure peace, is to prepare for war

    Joined:
    Dec 5, 2010
    Member:
    #47218
    Messages:
    559
    Gender:
    Male
    East TN
    Vehicle:
    03 4WD TRD XTD Cab
    Snugtop Camper Brushguard
    There are two sensors on the exhaust. One is the O2 sensor and the other is the Air/Fuel Ratio sensor.

    I wouldn't buy a knockoff/universal junker.

    Look here: www.partznet.com
     
  7. Dec 16, 2010 at 5:48 AM
    #7
    kingston73

    kingston73 Well-Known Member

    Joined:
    Aug 8, 2009
    Member:
    #20845
    Messages:
    2,453
    Gender:
    Male
    eastern MA
    Vehicle:
    09 SR5 4.0L 4x4
    What he said. The one in front of the cat is relatively easy to get to, the one behind the cat has it's plug inside the cab under the carpet on the passengers side. I'd stick with the ones that have the plugs pre-installed, the universal ones require you to cut and splice the wires to the connectors.
     
  8. Dec 16, 2010 at 7:17 AM
    #8
    asus611

    asus611 Well-Known Member

    Joined:
    Jan 22, 2010
    Member:
    #29821
    Messages:
    232
    Gender:
    Male
    CA
    Vehicle:
    03 Double Cab Prerunner
    You want to get this one, if you have a 4 wire, air fuel ratio monitor. http://www.amazon.com/Denso-234-9001-Oxygen-Sensor-Ratio/dp/B000C5WD2Q

    Denso is the OEM supplier for these and installation was plug n play. Amazon's price was the cheapest I could find. The only PITA part is somehow getting the connector plug undone... its a funny angle

    DOUBLE check that you have a 4 wire, Air Fuel Ratio sensor in the front. I have a 2003 3.4 Automatic California model. If you don't, the part number/link I gave is NOT the one you need.
     
  9. Dec 16, 2010 at 8:24 AM
    #9
    TacomaJPP

    TacomaJPP To secure peace, is to prepare for war

    Joined:
    Dec 5, 2010
    Member:
    #47218
    Messages:
    559
    Gender:
    Male
    East TN
    Vehicle:
    03 4WD TRD XTD Cab
    Snugtop Camper Brushguard
    When I replaced my air:fuel ration sensor, I removed the shifting boot from inside the cab to get to it. It was still a huge pain, but made it easier.

    Remember, at the factory all of this assembled before they put the body on the truck.

    I also tied a string to my old one as I pulled it out so that I could follow the same route with my new one with the string.
     
  10. Dec 17, 2010 at 10:42 AM
    #10
    fireman_343

    fireman_343 Ultimate TRD

    Joined:
    Aug 11, 2010
    Member:
    #41536
    Messages:
    333
    Gender:
    Male
    First Name:
    Brian
    Columbus, OHIO
    Vehicle:
    05 TRD Dlb Cab
    Viper Alarm, XD Series Wheels, Pioneer touch screen radio/nav system.
    Mine just came one and it was the same thing... My MPG went way down too! Thanks for the links!!
     
To Top