Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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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) CHARTSP0133: HO2S SENSOR CIRCUIT SLOW RESPONSE (HO2S-11)
2004 Ford Econoline E150, Van Cargo, 4.6 W
P0133: Ho2S Sensor Circuit Slow Response (Ho2S-11)
2004 Ford Econoline E150, Van Cargo, 4.6 WSECTION P0133: Ho2S Sensor Circuit Slow Response (Ho2S-11)
P0133 - HO2S SENSOR 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: |
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| Diagnostic Aids: | Access the HO2S test results from the Generic OBD-II menu to verify the DTC. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | - | - | GO to PINPOINT TEST H: FUEL CONTROL Step 2. |
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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.