LEMON Manuals
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Durango SXT, AWD
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Repair and Diagnosis (Single Page)
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Engine Performance
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3.6L - DTCS P2174 To U1431
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DTC Troubleshooting
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P2271-O2 Sensor 1/2 Signal Stuck Rich
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Set Condition
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Set Condition
The Powertrain Control Module (PCM) monitors the downstream O2 Sensor. If the PCM does not detect a rich to lean switch within a specific time during a decel fuel shutoff event, the monitor will fail.