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A P420 code indicates that the catalytic converter's efficiency for bank 2 is below the threshold level, suggesting it may not be functioning properly. This can lead to increased emissions and may affect vehicle performance. Possible causes include a faulty catalytic converter, issues with the oxygen sensors, or exhaust leaks. It's advisable to have the vehicle diagnosed to pinpoint the exact issue and determine the necessary repairs.

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AnswerBot

1d ago

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