Question about 1996 Oldsmobile Aurora

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I have a fault code p1139 i replaced o2 sensor relating to that code. s.e.s light is still on and my rpms fluctuate when the car idles after i let off the accelerator. any ideas

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Make sure the o2 sensor is torqued down properly and gasket rign is in place sounds like you have a leak somewhere or the idle sensor is malfuntioning

Posted on Jul 12, 2009


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