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I have a 96 mazda rx8 and just got a chk engine lt that went off but now the motor is idling rough and it stumbles off idle. ichecked the ecm and the code i got back was uo100 lost conn w ecm/pcm mod a any advice ?

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I believe the 02 sensor is on death row. have it chked or change. Good luck. Changed is recommended.

Posted on Nov 14, 2009


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