P0153: Ho2S Sensor Circuit Slow Response (Ho2S-21)

2004 Ford Econoline E150, Van Cargo, 4.6 WSECTION P0153: Ho2S Sensor Circuit Slow Response (Ho2S-21)
P0153 - HO2S SENSOR CIRCUIT SLOW RESPONSE (HO2S-21)

Description:  See the description for DTC P0133.
Possible Causes:  See the possible causes for DTC P0133.
Diagnostic Aids:  See the diagnostic aids for DTC P0133.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - - GO to PINPOINT TEST H: FUEL CONTROL Step 2.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.