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Replace oxygen sensor in 2002 Prius

Discussion in 'Generation 1 Prius Discussion' started by Kid's Car, Jan 13, 2014.

  1. Kid's Car

    Kid's Car New Member

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    2002 Prius
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    Anyone have some advice on replacing the upstream oxygen sensor on the manifold? At least I think that is where it is located from what I have read. I have been looking for some instruction on this and have not found much. I located a downloadable shop manual that I may purchase if I can find out if this repair is covered.
    I was told the cat converter needed to be replaced and before I dropped $2000 on a 12 year old car I thought I might try to replace the O2 sensors first.
    Any suggestions are appreciated.
     
    #1 Kid's Car, Jan 13, 2014
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Yes, I agree this is a reasonable approach.

    techinfo.toyota.com is a subscription website containing official Toyota repair manual information.
     
    #2 Patrick Wong, Jan 14, 2014
  3. Kid's Car

    Kid's Car New Member

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    So far so good. Both sensors replaced and no check engine light, at least for the first 75 or so miles. Keeping my fingers crossed....
     
    #3 Kid's Car, Jan 19, 2014
  4. kutcht1

    kutcht1 Member

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    Keep us posted as this information may help somebody else down the line like myself as I have an older Cat and I can only assume O2 sensors. Where did you end up getting the O2 sensors?
    TomK
     
    #4 kutcht1, Jan 20, 2014
  5. Kid's Car

    Kid's Car New Member

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    O2 sensors were purchased at a local Autozone. I went with Denso sensors.
     
    #5 Kid's Car, Feb 6, 2014
    yotatoter likes this.
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