P2270 2009 FORD FUSION - Oxygen Sensor Signal Stuck Lean Bank 1 Sensor 2
When is the code detected?The test fails if the Powertrain Control Module (PCM) does not detect the output of the Heated Oxygen Sensor (HO2S) in a calibrated amount of time.
P2270 2009 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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