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Home >> Dodge and Ram >> 2008 >> Challenger >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P2174 To U1418 >> Diagnosis And Testing >> P2271-O2 Sensor 1/2 Signal Biased Rich >> When Monitored:
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When Monitored:

With the engine running, the odometer greater than the minimum mileage allowable for catalyst break-in, and no global or monitor conflicts or disabling conditions present. The test will only run if the monitor has not already run and passed or failed.