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 MANUALSFORD2007FUSION SEL, 2.3 Z, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1176 (ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS - (HYBRID))DTC DIAGNOSISP2271 - O2 SENSOR SIGNAL STUCK RICH - BANK 1, SENSOR 2
2007 Ford Fusion SEL, 2.3 Z, Standard
P2271 - O2 Sensor Signal Stuck Rich - Bank 1, Sensor 2
2007 Ford Fusion SEL, 2.3 Z, StandardSECTION P2271 - O2 Sensor Signal Stuck Rich - Bank 1, Sensor 2
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
P2271 - O2 SENSOR SIGNAL STUCK RICH - BANK 1, SENSOR 2
| Description: | See the description for DTC P2270 . | ||
| Possible Causes: | See the possible causes for DTC P2270 . | ||
| 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.