Question about 2002 Toyota Corolla

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Need to locate 02 sensors locations for 2020Toyota Corolla! Which one causes bad first morning start in damp weather-Thanks Rob

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  • crg673 Apr 13, 2009

    What is your best guess as can't locate bad ground but starter relay ground on fender is hidden and can't be seen in behind left headlight . Fender wa once pulled out braking clip.- Rob

  • crg673 Apr 13, 2009

    How do you check catylic converter with thanks in advance-any pics you can show?What am Ilooking for?

  • yadayada
    yadayada May 11, 2010

    check the cat converter for what??

  • yadayada
    yadayada May 11, 2010

    O2 sensors will not cause any kind of starting problem, ever.

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Check the catylic converter.

Posted on Apr 13, 2009

  • Jimmy James Apr 14, 2009

    It is located in the converter. I don't have pcs but it can be googled. Sorry but look for a wired plugged into the converter.

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  2. Crossed sensor wires
  3. Exhaust leaks.
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Since you didnt specify the engine size in your vehicle - please see the diagram below for the location of the sensor(s)

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Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

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