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 MANUALSFORD2009FUSION SEL, 3.0 1, FWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID)DTC DIAGNOSISDTC P2196: - O2 SENSOR SIGNAL BIASED/STUCK RICH - BANK 1, SENSOR 1
2009 Ford Fusion SEL, 3.0 1, FWD
DTC P2196: - O2 Sensor Signal Biased/Stuck Rich - Bank 1, Sensor 1
2009 Ford Fusion SEL, 3.0 1, FWDSECTION DTC P2196: - O2 Sensor Signal Biased/Stuck Rich - Bank 1, Sensor 1
DTC P2196: - O2 SENSOR SIGNAL BIASED/STUCK RICH - BANK 1, SENSOR 1
| Description: | A heated oxygen sensor (HO2S) indicating rich at the end of a test is trying to correct for an over-lean condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time. | ||
| Possible Causes: | See the possible causes for DTC P2195. | ||
| Diagnostic Aids: | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test H . | ||
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.