MTPOCKITS Posted November 17, 2005 Report Share Posted November 17, 2005 ive had some problems with my car lately, had my mechanic here at volvo look at it, i got all kinda answers but none were correct.none of them checked for codes.tonight i did and here is what i got. 231bad oxygen sensor or bad connection, its only a month old.any ideas.thanks Link to comment Share on other sites More sharing options...
Three Fat Tigers Posted November 17, 2005 Report Share Posted November 17, 2005 I would suggest testing the signal from the O2 sensor. If that looks good, try some Chinese Water Torture. I have seen brand name O2 sensors that were defective and failed after a short period. Link to comment Share on other sites More sharing options...
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