P2273 2011 FORD FUSION - Oxygen Sensor Signal Stuck Rich Bank 2 Sensor 2
P2273 2011 Ford Fusion DescriptionThe downstream heated oxygen sensor (HO2S) is forced rich and lean and monitored by the Powertrain Control Module (PCM). The test fails if the PCM does not detect the output of the HO2S in a calibrated amount of time.
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