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2003 Toyota Camry Question: Replaced both o2 sensors on 2003 Camry, but light comes back on. Any help?

 

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Michael D., 2.4L 4 Cylinder, Rocky Mount, NC, September 26, 2013, 16:54
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Code called for upstream oxygen sensor. I have replaced both as the car has 135,000 miles.

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  • Answer #1

    September 26, 2013, 18:10
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     Master

    What brand sensors did you use? Some aftermarket's just dont work! Possible citcuit problem as well.

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    Michael D., September 27, 2013, 05:53
     Rookie

    The upstream sensor was an after market, and the downstream was a Bostch.

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    pushrod, September 27, 2013, 06:48
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     Master

    DENSO, NTK/NGK. Is what i have the best luck with on Toyota! No luck with Bosh on anything!

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    globalhelper, September 27, 2013, 07:03
     Master

    does the live data show catts are ok and what about o2 readings

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  • Answer #2

    Greg's Orange Auto (14194 Answers) , Orange, CA - (714) 361-9386
    globalhelper September 27, 2013, 06:23
     Master

    why repl with 2 diff kinds?

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