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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 198 (3.7L/4.7L/5.7L - DTCS P2173 To U1418 - NGC - 1500 & 2500) >> Diagnosis And Testing >> P2273-O2 Sensor 2/2 Signal Stuck Rich >> Set Condition:

Set Condition:

WARNING: This page is about a different car, the 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

The 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. Two trip fault. Three good trips to turn off the MIL.

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