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Home >> Lincoln >> 2016 >> MKT Base, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> P2272 - O2 Sensor Signal Stuck Lean (Bank 2, Sensor 2)

P2272 - O2 Sensor Signal Stuck Lean (Bank 2, Sensor 2)

DTC DESCRIPTION P2272 - O2 SENSOR SIGNAL STUCK LEAN (BANK 2, SENSOR 2)

Description:  The heated oxygen sensor bank 2, sensor 2 (HO2S22) is forced rich and lean and monitored by the PCM. This DTC sets when the PCM does not detect the output of the HO2S22 in a calibrated amount of time.
Possible Causes: 
  • Pinched, shorted, and corroded wiring and pins
  • Crossed HO2S22 wires
  • Exhaust leaks
  • Contaminated HO2S22
  • Damaged HO2S22
Diagnostic Aids:   
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test H .