DTC P0133: HO2S Circuit Slow Response (HO2S-11)

2005 Ford GTSECTION DTC P0133: HO2S Circuit Slow Response (HO2S-11)
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
P0133 - HO2S CIRCUIT SLOW RESPONSE (HO2S-11)

Description:  The heated oxygen sensor (HO2S) monitor checks the HO2S frequency and amplitude. If during testing the frequency and amplitude fall below a calibrated limit, the test fails.
Possible Causes: 
  • Contaminated HO2S
  • Exhaust leaks
  • Shorted/open wiring
  • Incorrect fueling
  • MAF sensor
  • Deteriorating HO2S
  • Inlet air leaks
Diagnostic Aids:  Access the HO2S test results from the generic OBD menu to verify the DTC.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - - GO to H: Fuel Control STEP H2
RENDER: 1.0x

NO RELATED

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