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

Replacing O2 sensor

Discussion in '1st Gen. Tacomas' started by pittim, Nov 24, 2008.

  1. Nov 24, 2008 at 3:22 PM
    #1
    pittim

    pittim [OP] Play stupid games, win stupid prizes

    Joined:
    May 28, 2008
    Member:
    #6939
    Messages:
    10,841
    Gender:
    Male
    First Name:
    Tim
    IN, PA
    Vehicle:
    Dented and rusty
    Pink slider.
    My truck is throwing code P0031, Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 1.) All I do is unbolt and unplug the old one and replace with the new one correct? Am I able to get at it from under the truck (03 V6 manual) easily or do I have more work ahead of me?
     
  2. Nov 24, 2008 at 3:26 PM
    #2
    tacomaman06

    tacomaman06 Carolina Alliance: Lead, follow, or get the hell o Thor

    Joined:
    May 1, 2007
    Member:
    #1475
    Messages:
    26,352
    Gender:
    Male
    First Name:
    Will
    York,South Carolina
    Vehicle:
    '13 Silverado ext cab
    should be easy enough to get to. you may wanna get some pb blaster and spray on the threads and let it sit for a little while..........those threads can get kinda rusty and be an ass to get off. you also may wanna get an o2 sensor socket.....they have a slot cut into them so you can get it over the o2 sensor easier............thats only if you dont have one already. other than that........unscrew,unplug, then install the new one.
     
  3. Nov 24, 2008 at 3:29 PM
    #3
    HerNameIsLucy

    HerNameIsLucy I miss Lucy. :-(

    Joined:
    Jul 31, 2008
    Member:
    #8256
    Messages:
    3,047
    Gender:
    Male
    First Name:
    John
    Equador. Don't know why.
    Vehicle:
    RIP Lucy.
    She's gone but not forgotten.
    the PB blaster is an excellent idea, esp. if there's rust. but wipe it off before you put the new one in. if it gets in the new sensor it'll hose it.
     
  4. Nov 24, 2008 at 3:32 PM
    #4
    tacomaman06

    tacomaman06 Carolina Alliance: Lead, follow, or get the hell o Thor

    Joined:
    May 1, 2007
    Member:
    #1475
    Messages:
    26,352
    Gender:
    Male
    First Name:
    Will
    York,South Carolina
    Vehicle:
    '13 Silverado ext cab
    yeah...i shoulda added to clean it off before installing the new one.:eek:
     
  5. Nov 24, 2008 at 3:56 PM
    #5
    pittim

    pittim [OP] Play stupid games, win stupid prizes

    Joined:
    May 28, 2008
    Member:
    #6939
    Messages:
    10,841
    Gender:
    Male
    First Name:
    Tim
    IN, PA
    Vehicle:
    Dented and rusty
    Pink slider.
    [​IMG]

    Thats the sensor from Denso that I'll be getting. Looks like I don't have to screw it in ya? So just spray down the bolts with PB Blaster, unscrew and unplug, wipe off the area that I sprayed down, then drop the new one in and just bolt and plug back in.

    Seems simple enough...
     
  6. Nov 24, 2008 at 4:04 PM
    #6
    HerNameIsLucy

    HerNameIsLucy I miss Lucy. :-(

    Joined:
    Jul 31, 2008
    Member:
    #8256
    Messages:
    3,047
    Gender:
    Male
    First Name:
    John
    Equador. Don't know why.
    Vehicle:
    RIP Lucy.
    She's gone but not forgotten.
    yup, 1st gens use two bolts to attach it. not sure about 2nd gens.

    my haynes suggests you run the engine a little before you break the bolts loose, get the pipe good and warm but not hot enough to burn yourself. guess it helps loosen things.

    also from experience you'll want to disconnect the battery for a few minutes after you replace it, or find a OBD scantool and erase the stored code in the ECU.
     
  7. Nov 24, 2008 at 4:05 PM
    #7
    AUDITECH

    AUDITECH Carolina Alliance: LAZY DIVISION

    Joined:
    Feb 10, 2007
    Member:
    #875
    Messages:
    840
    charlotte nc
    Vehicle:
    07 double cab prerunner
    none
    Yes dont plug it in until you install it you dont want to twist the wires.
     
  8. Nov 24, 2008 at 4:24 PM
    #8
    dud122

    dud122 rabble rabble rabble

    Joined:
    Nov 7, 2008
    Member:
    #10566
    Messages:
    1,915
    Gender:
    Male
    First Name:
    Dan
    Riverdale Park, MD
    Vehicle:
    2002 Tacoma DC
    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
    i had a check engine light come on and my mechanic said it was the air fuel sensor and it was bank 1 sensor 1... are we talking about the same thing?
     
  9. Nov 24, 2008 at 4:31 PM
    #9
    pittim

    pittim [OP] Play stupid games, win stupid prizes

    Joined:
    May 28, 2008
    Member:
    #6939
    Messages:
    10,841
    Gender:
    Male
    First Name:
    Tim
    IN, PA
    Vehicle:
    Dented and rusty
    Pink slider.
    Yep, the O2 sensor is the thing that sends the ECU the "contents" of the exhaust so that the ECU can adjust the air/fuel ratio.
     
  10. Nov 24, 2008 at 4:37 PM
    #10
    pittim

    pittim [OP] Play stupid games, win stupid prizes

    Joined:
    May 28, 2008
    Member:
    #6939
    Messages:
    10,841
    Gender:
    Male
    First Name:
    Tim
    IN, PA
    Vehicle:
    Dented and rusty
    Pink slider.
    Ok, should I get Bosch or Denso?

    URD has the Denso for ~$185 shipped, and Advance Auto has the Bosch for $205. My parents want me to do it at home (I'm home till Sunday) so I'd have to get the thing shipped, so the Denso from URD would end up costing around $200.
     
  11. Nov 24, 2008 at 4:41 PM
    #11
    HerNameIsLucy

    HerNameIsLucy I miss Lucy. :-(

    Joined:
    Jul 31, 2008
    Member:
    #8256
    Messages:
    3,047
    Gender:
    Male
    First Name:
    John
    Equador. Don't know why.
    Vehicle:
    RIP Lucy.
    She's gone but not forgotten.
    OEM is Denso.

    Rockauto has them for $146. www.rockauto.com

    bought from them several times, even had to return something i screwed up ordering on...never a problem.
     
  12. Nov 24, 2008 at 4:48 PM
    #12
    pittim

    pittim [OP] Play stupid games, win stupid prizes

    Joined:
    May 28, 2008
    Member:
    #6939
    Messages:
    10,841
    Gender:
    Male
    First Name:
    Tim
    IN, PA
    Vehicle:
    Dented and rusty
    Pink slider.
    Oh wow, Rock Auto has the Denso with next day shipping for $160!
     
  13. Nov 24, 2008 at 4:50 PM
    #13
    HerNameIsLucy

    HerNameIsLucy I miss Lucy. :-(

    Joined:
    Jul 31, 2008
    Member:
    #8256
    Messages:
    3,047
    Gender:
    Male
    First Name:
    John
    Equador. Don't know why.
    Vehicle:
    RIP Lucy.
    She's gone but not forgotten.
    yer welcome :D

    EDIT: If you can wait a little while RockAuto is constantly sending me 10% off codes, I'd give you one.
     
  14. Nov 24, 2008 at 5:01 PM
    #14
    pittim

    pittim [OP] Play stupid games, win stupid prizes

    Joined:
    May 28, 2008
    Member:
    #6939
    Messages:
    10,841
    Gender:
    Male
    First Name:
    Tim
    IN, PA
    Vehicle:
    Dented and rusty
    Pink slider.
    While I appreciate the offer, you already saved me $40! Plus I found a 5% off coupon online.

    Just ordered it for $154 with overnight shipping. Lucy, you ROCK!
     
  15. Nov 24, 2008 at 6:16 PM
    #15
    Janster

    Janster Old & Forgetful

    Joined:
    Mar 25, 2007
    Member:
    #1138
    Messages:
    13,599
    Gender:
    Female
    First Name:
    Jandy
    Lancaster, PA
    Vehicle:
    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.
  16. Nov 24, 2008 at 6:25 PM
    #16
    HerNameIsLucy

    HerNameIsLucy I miss Lucy. :-(

    Joined:
    Jul 31, 2008
    Member:
    #8256
    Messages:
    3,047
    Gender:
    Male
    First Name:
    John
    Equador. Don't know why.
    Vehicle:
    RIP Lucy.
    She's gone but not forgotten.
    DO NOT try the wire/paper clip to get the code(s) that page talks about on an 03. That only works on OBD-I vehicles. You'll fry something on the OBD-II vehicles (95 and up on Toyota).
     
  17. Nov 24, 2008 at 6:35 PM
    #17
    pittim

    pittim [OP] Play stupid games, win stupid prizes

    Joined:
    May 28, 2008
    Member:
    #6939
    Messages:
    10,841
    Gender:
    Male
    First Name:
    Tim
    IN, PA
    Vehicle:
    Dented and rusty
    Pink slider.
    Should I reset my CEL before or after replacing the O2 sensor?
     
  18. Nov 24, 2008 at 6:36 PM
    #18
    HerNameIsLucy

    HerNameIsLucy I miss Lucy. :-(

    Joined:
    Jul 31, 2008
    Member:
    #8256
    Messages:
    3,047
    Gender:
    Male
    First Name:
    John
    Equador. Don't know why.
    Vehicle:
    RIP Lucy.
    She's gone but not forgotten.
  19. Nov 24, 2008 at 11:42 PM
    #19
    Janster

    Janster Old & Forgetful

    Joined:
    Mar 25, 2007
    Member:
    #1138
    Messages:
    13,599
    Gender:
    Female
    First Name:
    Jandy
    Lancaster, PA
    Vehicle:
    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.
    I did it on my 96 and it worked
     
  20. Nov 24, 2008 at 11:44 PM
    #20
    Janster

    Janster Old & Forgetful

    Joined:
    Mar 25, 2007
    Member:
    #1138
    Messages:
    13,599
    Gender:
    Female
    First Name:
    Jandy
    Lancaster, PA
    Vehicle:
    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.
    While you are working on the truck - you should have the battery disconnected anyway. Just by having the battery disconnected and changing the 02 sensor - the CEL shouldn't be on when you're finished.
     
To Top