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HOMESERVICE MANUALSFORD2004ECONOLINE E150, VAN CARGO, 4.6 WREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS - CNG, FLEX-FUEL & GASOLINEDIAGNOSTIC TROUBLE CODE (DTC) CHARTSP2195 - LACK OF HO2S-11 SWITCH, SENSOR INDICATES LEAN
2004 Ford Econoline E150, Van Cargo, 4.6 W

P2195 - Lack Of Ho2S-11 Switch, Sensor Indicates Lean

2004 Ford Econoline E150, Van Cargo, 4.6 WSECTION P2195 - Lack Of Ho2S-11 Switch, Sensor Indicates Lean
P2195 - LACK OF HO2S-11 SWITCH, SENSOR INDICATES LEAN

Description:  A Heated Oxygen (HO2S) sensor 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 VPWR in the harness or HO2S.
  • Water in the harness connector.
  • Open/shorted HO2S circuit.
  • Corrosion or poor mating terminals and wiring.
  • Damaged HO2S.
  • Damaged PCM.
  • Fuel System:
  • Excessive fuel pressure.
  • Leaking/contaminated fuel injectors.
  • Leaking fuel pressure regulator.
  • Low fuel pressure or running out of fuel.
  • Vapor recovery system.
  • Induction System:
  • Air leaks after the MAF.
  • Vacuum Leaks.
  • PCV system.
  • Improperly seated engine oil dipstick.
  • EGR System:
  • Leaking gasket.
  • Stuck EGR valve.
  • Leaking diaphragm or EVR.
  • Base Engine:
  • Oil overfill.
  • Cam Timing.
  • Cylinder compression.
  • Exhaust leaks before or near the HO2S(s).
Diagnostic Aids:  -
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
Dedicated NGV - GO to HA: Natural Gas Fuel Control STEP 9 GO to HA: Natural Gas Fuel Control STEP 9
All Others - GO to H: Fuel Control STEP 17 GO to H: Fuel Control STEP 17
RENDER: 1.0x

NO RELATED

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