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HOMESERVICE MANUALSFORD2005ECONOLINE E150, VAN CARGO, 5.4 LREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTION (EXCEPT DIESEL & HYBRID)DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONSDTC P2195: LACK OF HO2S-11 SWITCH, SENSOR INDICATES LEAN
2005 Ford Econoline E150, Van Cargo, 5.4 L

DTC P2195: Lack of HO2S-11 Switch, Sensor Indicates Lean

2005 Ford Econoline E150, Van Cargo, 5.4 LSECTION DTC P2195: Lack of HO2S-11 Switch, Sensor Indicates Lean
P2195 - LACK OF HO2S-11 SWITCH, SENSOR INDICATES LEAN

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 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 powertrain control module (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 mass air flow (MAF) sensor
  • Vacuum leaks
  • PCV system
  • Improperly seated engine oil dipstick

EGR System:
  • Leaking gasket
  • Stuck EGR valve
  • Leaking diaphragm or EVR

Base Engine:
  • Oil overfill
  • Camshaft timing
  • Cylinder compression
  • Exhaust leaks before or near the HO2S(s)
Diagnostic Aids:   
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - GO to H: Fuel Control STEP H16. GO to H: Fuel Control STEP H16.
RENDER: 1.0x

NO RELATED

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