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HOMESERVICE MANUALSFORD2009EDGE SPORT, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 2369 (ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS - DTC P164B THROUGH DTC UXXXX - (EXCEPT DIESEL & HYBRID))DTC P2195: O2 SENSOR SIGNAL BIASED/STUCK LEAN - BANK 1, SENSOR 1
2009 Ford Edge Sport, FWD

DTC P2195: O2 Sensor Signal Biased/Stuck Lean - Bank 1, Sensor 1

2009 Ford Edge Sport, FWDSECTION DTC P2195: O2 Sensor Signal Biased/Stuck Lean - Bank 1, Sensor 1
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2011 Mercury Milan, 2011 Mercury Mariner, 2011 Mercury Grand Marquis, 2011 Lincoln Town Car, and 2011 Lincoln Navigator L. However, it is still accessible from the selected car via links, so may be relevant.
P2195 - O2 SENSOR SIGNAL BIASED/STUCK LEAN - BANK 1, SENSOR 1

Description:  A heated oxygen sensor (HO2S) indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time.
Possible Causes:  Electrical:
  • Short to voltage in the harness or HO2S
  • Water in the harness connector
  • Open HO2S circuit
  • Open UO2SPC circuit
  • Corrosion
  • Incorrect harness connections
  • Damaged HO2S
  • Damaged powertrain control module (PCM)

Fuel System:
  • Excessive fuel pressure
  • Leaking or contaminated fuel injectors
  • Leaking fuel pressure regulator
  • Low fuel pressure or running out of fuel

Evaporative Emission (EVAP) System:
  • EVAP canister purge (EVAPCP) valve stuck open

Intake Air System:
  • Air leaks after the mass airflow (MAF) sensor
  • Vacuum leaks
  • Positive crankcase ventilation (PCV) system is leaking or the valve is stuck open
  • Incorrectly seated engine oil dipstick

Exhaust Gas Recirculation (EGR) System:
  • Leaking gasket
  • Stuck EGR valve
  • Leaking diaphragm or EGR vacuum regulator

Base Engine:
  • Oil overfill
  • Camshaft timing
  • Cylinder compression
  • Exhaust leaks before or near the HO2S
Diagnostic Aids: 
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST H .
RENDER: 1.0x

NO RELATED

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