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    Thread: 02 Oxygen sensor failures

    1. #1
      What's wrong with my car?
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      02 Oxygen sensor failures

      Both 02 sensors went out at the same time on my 2011 Aveo5 LS at 130k miles. DONĒT waste time and money on the 15 to 30 dollar no name cheapies. Tried 1 each from 2 different vendors.
      Both tested bad new and both sent defect codes to the ECM. You might get lucky but donít count on it. Finally put in GM originals and all is fine. The car was un-drivable stalling and cutting out with the bad upwind sensor in it.



    2. #2
      What's wrong with my car?
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      Interesting read, dealer replaced the upstream sensor when I bought it, 8000 miles later popped a code. Replaced it with a Walker, but noticed the one that was in there was also a Walker. Maybe the OEM is a Bosch?



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