P2271 2006 FORD FUSION - Oxygen Sensor Signal Stuck Rich Bank 1 Sensor 2
- Faulty O2 Sensor Bank 1 Sensor 2
- Exhaust leaks
- O2 Sensor Bank 1 Sensor 2 harness is open or shorted
- O2 Sensor Bank 1 Sensor 2 circuit poor electrical connection
When is the code detected?The Powertrain Control Module (PCM) detected the HO2S12 sensor has reported a rich condition for an extended period during an intrusive test
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust
P2271 2006 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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