It means that your PCM cannot read the rear O2 sensor (the one after the cat). Check the wires to it and make sure they're good. Could just be a bad O2 sensor. Worst case it could be the cat converter.
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12-16-2014
It means that your PCM cannot read the rear O2 sensor (the one after the cat). Check the wires to it and make sure they're good. Could just be a bad O2 sensor. Worst case it could be the cat converter.
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