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Home › Chrysler › 2023 › 300 C › Repair and Diagnosis › Engine Performance › System › 6.4L - DTCS P2122 To P2503 › DTC Troubleshooting › P2271-O2 Sensor 1/2 Signal Biased Rich › Set Condition

Set Condition

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.