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Home >> Chrysler >> 2012 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (6.4L - DTCS P000B To P0201) >> Diagnosis And Testing >> P0139-O2 Sensor 1/2 Slow Response >> When Monitored:

When Monitored:

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With the engine running, vehicle speed above 96 kph (60 mph), throttle open for a minimum of 120 seconds, ECT greater than 70°C (158°F), Catalytic Converter temperature greater than 600°C (1112°F) and Downstream Oxygen Sensor in a rich state. During a decel fuel shutoff event, the Downstream Oxygen Sensor should switch from rich to lean within a specific time.

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