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

O2 sensor replaced, Check engine light came back

Discussion in '1st Gen. Tacomas' started by Flash333, Feb 21, 2012.

  1. Feb 21, 2012 at 2:14 PM
    #1
    Flash333

    Flash333 [OP] Member

    Joined:
    Oct 29, 2009
    Member:
    #25101
    Messages:
    8
    Gender:
    Male
    Vehicle:
    03 TRD SR5 Silver
    Hi all

    So i replaced my O2 sensor yesterday. The Bank 1 sensor 2. Everything when fine. I cleared the alarm with my OBD2. Now today on my way home from work, the check engine light came back one and yes, it is the same alarm. Sensor O2 Bank 1 Sensor 2.

    ??????? Should i just burn the truck and buy a new one?????:D

    Joke aside, i dont know where to go now for troubleshooting...

    Any takers ?:cool:
     
  2. Feb 21, 2012 at 2:18 PM
    #2
    Steves104x4

    Steves104x4 Well-Known Member

    Joined:
    Apr 17, 2010
    Member:
    #35468
    Messages:
    6,159
    Gender:
    Male
    First Name:
    Steve
    Buffalo NY
    Vehicle:
    2010 RC 2.7 4x4
    BUCKLE UP! It makes it harder for Aliens to pull you out of your Truck.
    Check the wiring isn't pinched or burned especially around hot areas of the engine. Also exhaust leaks or restrictions. EVAP emissions system or fuel pressure.
     
  3. Feb 21, 2012 at 2:38 PM
    #3
    Flash333

    Flash333 [OP] Member

    Joined:
    Oct 29, 2009
    Member:
    #25101
    Messages:
    8
    Gender:
    Male
    Vehicle:
    03 TRD SR5 Silver
    all right !! ill check that out. could fuel pressure really do that ??

    Also, for more info, my OBD2 says i'm in the yellow for emission control. (if that means anything) and i have four lights flashing on it.. one is the O2S, Cat, and two others that i have no idea...

    cheers
     
  4. Feb 21, 2012 at 3:29 PM
    #4
    Robertgeejr1

    Robertgeejr1 Well-Known Member

    Joined:
    Dec 21, 2011
    Member:
    #69167
    Messages:
    779
    Gender:
    Male
    First Name:
    Robert
    Aorora, Ill, yeah!
    Vehicle:
    1996 Toyota Tacoma SR5 4x4
    I have done all the hi-pro mods for a life time, since I got this truck at a great price, I will be happy with showroom new.
    on any car i have had i always unhook the battery for 30mins to reset it.
    its the old fashion way, but that is the way i am. don't know if this helps.
     
  5. Feb 21, 2012 at 3:43 PM
    #5
    Flash333

    Flash333 [OP] Member

    Joined:
    Oct 29, 2009
    Member:
    #25101
    Messages:
    8
    Gender:
    Male
    Vehicle:
    03 TRD SR5 Silver
    Nice !! the good ol redneck way... But yeah, i can reset it with my OBD2 but it keeps coming back... thanks anyways ;)
     
  6. Feb 21, 2012 at 4:20 PM
    #6
    isu2014

    isu2014 RAT Products

    Joined:
    Apr 12, 2010
    Member:
    #35140
    Messages:
    12,423
    Gender:
    Male
    First Name:
    Ryan
    Farmington, MN
    Vehicle:
    01 SUPERCHARGED TRD OR MANUAL 4x4 V6
    View the build. Too much to list.
    I replace oxygen sensors in pairs. If one is bad, chances are the other one is failing too.
     
  7. Feb 21, 2012 at 5:36 PM
    #7
    bicklebok

    bicklebok Well-Known Member

    Joined:
    May 24, 2011
    Member:
    #57154
    Messages:
    212
    Gender:
    Male
    First Name:
    Ronnie
    Montgomery, AL
    Vehicle:
    2000 Xtra Cab 4x4 SR5
    What brand O2 sensor did you buy? Denso is the only way to go on these trucks.

    I replaced mine about 6 months ago, and the light came on about 3 more times over a few hundred miles. I reset it each time, and it has now quit coming on.
     
  8. Feb 21, 2012 at 5:46 PM
    #8
    dud122

    dud122 rabble rabble rabble

    Joined:
    Nov 7, 2008
    Member:
    #10566
    Messages:
    1,923
    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 went back and forth trying to fix the same problem... replaced both sensors twice over a couple years... now the only way i can keep the CEL off is if i run premium gas. if i fill up with regular the light will be back on by the end of the tank and it will take about 1-2 tanks of premium before it stays off. i've tested it several times and it happens like this every time.... i just figure the truck is getting picky in its old age.
     
  9. Feb 21, 2012 at 6:13 PM
    #9
    scotrinaf

    scotrinaf Well-Known Member

    Joined:
    Jan 24, 2012
    Member:
    #71311
    Messages:
    1,475
    Gender:
    Male
    First Name:
    Scott
    Blountville, TN
    Vehicle:
    04 PreRunner TRD SR5 4x2 2.7L
    Leer 100XQ, Yakima Roof Racks
    Advance Auto, Autozone, or O'Reilly Auto Parts will do a code reset for free... Could just be a fluke with the sensor tripping... Try having it reset once or twice and see if it comes back on, if so, replace the sensor with a OEM.
     
  10. Feb 21, 2012 at 6:39 PM
    #10
    Flash333

    Flash333 [OP] Member

    Joined:
    Oct 29, 2009
    Member:
    #25101
    Messages:
    8
    Gender:
    Male
    Vehicle:
    03 TRD SR5 Silver
    thanks everyone, will try your tricks for a lil while and see. I bought that sensor off ebay and i dont even know what kind it is. Ill buy a denso if that doesnt work.
     
  11. Feb 22, 2012 at 5:18 AM
    #11
    dud122

    dud122 rabble rabble rabble

    Joined:
    Nov 7, 2008
    Member:
    #10566
    Messages:
    1,923
    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
    try rockauto.com

    they have very good prices. i get all my OEM replacement parts from them.
     
To Top