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Oxygen Sensors

Discussion in '1st Gen. Tacomas' started by Anthony250, Oct 31, 2011.

  1. Anthony250

    Anthony250 [OP] E-Fabber

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    I know my Oxygen Sensor is going bad, Its the After Cat, the Post Cat. Is that the one thats Upstream or downstream?
    Never really understood
     
  2. 98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    Before the CAT = UPstream (you will also hear this one referred to as an AFR)
    After the CAT = DOWNstream.
     
  3. Anthony250

    Anthony250 [OP] E-Fabber

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    Thanks.
     
  4. Anthony250

    Anthony250 [OP] E-Fabber

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    Is the 4Wd Sensors different from the 2Wd??
     
  5. 98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    No, but the V6 and I4 sensors will be. Also the Fed emissions and Ca emissions are models will be different too. If you need them, go to www.rockauto.com They have the Denso OEM sensors and they are the cheapest. The also have a TW discount code in their vendor section.
     
  6. Anthony250

    Anthony250 [OP] E-Fabber

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    Anybody help , having a hard time finding one that is Ca Compliant, 1999 Tacoma v6 auto, 2wd, downstream o2 sensor, direct fit
     
  7. vantaco

    vantaco Well-Known Member

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  8. snoope

    snoope Well-Known Member

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    www.densoaftermarket.com/catalog

    look up your truck THEN go over to Amazon to find best deal....

    Just paid "small $$$$' for one for the Camry....be$t deal going for prices but there was a 48 hour wait compared to the other 1/2 of my order...

    DO YOUR HOMEWORK & save $$$$$..
     
  9. Anthony250

    Anthony250 [OP] E-Fabber

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    Thanks but im looking for Post, Downstream
     
  10. 98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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  11. Anthony250

    Anthony250 [OP] E-Fabber

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  12. 98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    Interesting, that's the number from URD's site for your truck.
     
  13. Anthony250

    Anthony250 [OP] E-Fabber

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  14. SCSPerformance

    SCSPerformance Stealth Custom Series™

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    isn't it DENSO Part # 2344159, OE style, plug and play? downstream, V6, auto, right? rockauto has it for $59.

    nvm. i think the one you and i listed has the same sensor, but yours is 17" long and the i listed is 33" long(wire length).
     
  15. Anthony250

    Anthony250 [OP] E-Fabber

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    Yup thats the one i just ordered on Amazon for $50 shipped. :D
    Next Purchase Fan belts, then LONG TRAVEL>
     
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