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Which brand of O2 sensor to buy

Discussion in '1st Gen. Tacomas (1995-2004)' started by Jeremy Martin, Feb 2, 2021.

  1. Feb 2, 2021 at 8:14 PM
    #1
    Jeremy Martin

    Jeremy Martin [OP] Well-Known Member

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    Bank 1 sensor 2 is bad on the Taco. It's the downstream and those seem to be a little cheaper but my local stealership still wants $155 for it. I usually try to go with OEM when I purchase sensors but this one seems a little steep for just an o2 sensor.
    Does anyone have any luck with Denso, Delphi or NTK sensors?
     
    Blaspheorion and Black DOG Lila like this.
  2. Feb 2, 2021 at 8:15 PM
    #2
    Bishop84

    Bishop84 Well-Known Member

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    Downstream isn't as critical as the upstream a/f sensor.

    Denso or NTK are both great choices for Tacoma.
     
  3. Feb 2, 2021 at 8:20 PM
    #3
    Black DOG Lila

    Black DOG Lila Well-Known Member

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    2003 Tacoma SR5 2.7 5 speed 4WD
    Stock. EZ pass.Dump pass.Inspection sticker.Convict printed lic.plates.FG cap.
    joe25rs, CS_AR and TWJLee like this.
  4. Feb 2, 2021 at 8:24 PM
    #4
    Jeremy Martin

    Jeremy Martin [OP] Well-Known Member

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  5. Feb 2, 2021 at 8:27 PM
    #5
    Black DOG Lila

    Black DOG Lila Well-Known Member

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    2003 Tacoma SR5 2.7 5 speed 4WD
    Stock. EZ pass.Dump pass.Inspection sticker.Convict printed lic.plates.FG cap.
    Have another keeper :D
    :thumbsup:
    http://japan-parts.eu/toyota/us
    Run your VIN# Toyota parts catalog
     
  6. Feb 2, 2021 at 8:35 PM
    #6
    Jeremy Martin

    Jeremy Martin [OP] Well-Known Member

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    Just placed the order $65 to my door from Rockauto for the Denso. Thanks all, I appreciate the help saving a little cash.
     
    Black DOG Lila likes this.
  7. Feb 2, 2021 at 9:32 PM
    #7
    hogeyphenogey

    hogeyphenogey Back in a Tacoma

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    Denzo all the way. Almost no car likes aftermarket O2 sensors.
     
    Seagull233 and Black DOG Lila like this.
  8. Feb 5, 2021 at 6:56 PM
    #8
    SATX_Tacos

    SATX_Tacos Well-Known Member

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    Since yall are talking about sensors, would any of yall happen to know where the upstream air fuel sensor is located?
     
  9. Feb 5, 2021 at 7:17 PM
    #9
    Black DOG Lila

    Black DOG Lila Well-Known Member

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    Stock. EZ pass.Dump pass.Inspection sticker.Convict printed lic.plates.FG cap.
    At the top of exhaust pipe after Ypipe and before the 1st catalytic converter.
     
    SATX_Tacos[QUOTED] likes this.
  10. Feb 5, 2021 at 7:24 PM
    #10
    SATX_Tacos

    SATX_Tacos Well-Known Member

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    Boom! Thank you!
     
  11. Feb 6, 2021 at 6:55 AM
    #11
    Blaspheorion

    Blaspheorion Member

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    Gar
    Central Florida
    Vehicle:
    1997 tacoma
    Bully Liner paint job (color) burnt red Swapped 5vz-fe 3 inch fab tech lift Pro comp 5089 16" wheels No spacers yet
    I just did 5vzfe Swap on my 97 last week and yesterday light came in went and got it chked an came back p0141 bank 1 sensor 2 to be changed pretty sure i got same problem lol thanks for the parts site appreciate it
     
  12. Feb 6, 2021 at 8:02 AM
    #12
    Woodcutter

    Woodcutter Well-Known Member

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    Replaced these last year with Denso, purchased at Rockauto, for 1996 TACO. no problems with install, running well post-change. suggest you use the 02 removal tool, and spray sensors the evening before with PB rust blaster and sit overnight to soak in for easier removal in am before driving. install with some anti-seize for an easier time next time. https://duckduckgo.com/?t=ffnt&q=Chris+fix+install+02+sensor&iax=videos&ia=videos&iai=https://www.youtube.com/watch?v=CtngAVxJxkE good luck! Woodcutter
     
    CS_AR likes this.
  13. May 10, 2025 at 4:02 PM
    #13
    45thparalleln

    45thparalleln Well-Known Member

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    '04 3RZFE / '99 5VZFE
    It appears that Denso only sells downstream sensor (for auto trans) now in 2025??? Denso Sensors

    Im trying to order a pair for my '99 tacoma Automatic, what do you guys suggest? I'd like to keep the same manufacture for consistency, cost isnt a big issue. I might go with NTK if anyone has inputs pls let me know. My P0171 code came one so Im replacing the O2 to start with.
     
  14. May 16, 2025 at 10:20 PM
    #14
    koco

    koco Well-Known Member

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    Around $26,000 worth of unleaded in the fuel tank.
    Both sensors are the same except the downstream one has a longer wire, so you can use it on the front also.
     

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