Question about 2001 Toyota MR2 Spyder

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At a local auto zone they put the diagnostic machine and determine that the oxygen sensor ''no. 2'' is defective. I bought it but, the two sensors on top of the manifold look similar. Which one would it be ''no. 2''? the one to the left or, the one to the right when standing behind the car facing the engine? Thanks,

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  • sanmag2004 Mar 02, 2009

    Don't have the code. The guy only said that it was the "downstream" sensor which was defective. There is supposed to be only one "downstream" and two "downstream" sensors.

  • sanmag2004 Mar 02, 2009

    That should do it brother since, the other two sensors are located befor the catalytic converter. Thanks a lot...

  • sanmag2004 Mar 03, 2009

    You are the man... Thanks

  • yadayada
    yadayada May 11, 2010

    the down stream sensor is the sensor located after the catalytic converter. Is this the question?

  • yadayada
    yadayada May 11, 2010

    what is the code?



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Great! glad to help out

Posted on Mar 02, 2009


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