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Check engine light on!

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Old 12-04-2006, 04:03 PM
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Default Check engine light on!

Who can tell me what this means? o2 sensor circuit malfunction(bank 1 sensor 2) means. I'm guessing that my left after cat o2 sensor is bad am i correct?
Old 12-04-2006, 05:39 PM
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That's what it sounds like to me. Swap your bank 1 and bank 2 rear sensors and see if the code changes sides.
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