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P0420 cruze catalyst thresholdImage2 jpeg chevy P0138 code: o2 sensor circuit high voltage (bank 1, sensor 2)P0420 catalyst system efficiency below threshold (bank 1).
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2012 chevrolet equinox 135,000miles 2.4l p0420 keeps coming back. iP0010 chevy equinox appear? learn this before calling your mechanic .
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