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 MANUALSFORD2013EXPEDITION EL KING RANCH, RWDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS (EXCEPT DIESEL & HYBRID) - DTC P164A - P2A04, DTC U0046- U300CDTC P2297: O2 SENSOR OUT OF RANGE DURING DECELERATION (BANK 1, SENSOR 1)
2013 Ford Expedition EL King Ranch, RWD
DTC P2297: O2 Sensor Out Of Range During Deceleration (Bank 1, Sensor 1)
2013 Ford Expedition EL King Ranch, RWDSECTION DTC P2297: O2 Sensor Out Of Range During Deceleration (Bank 1, Sensor 1)
DTC P2297: O2 SENSOR OUT OF RANGE DURING DECELERATION (BANK 1, SENSOR 1)
| Description: | During a deceleration fuel shut-off (DFSO) event, the PCM monitors how quickly the rear heated oxygen sensor (HO2S) switches from rich to lean. The measured rate of the rich to lean switch is compared to a calibrated threshold value. The threshold value takes into account the level of oxygen in the catalyst, which has an impact on how quickly the rich to lean switch occurs. This DTC sets when the measured value is slower than the threshold value. | ||
| Possible Causes: |
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| Diagnostic Aids: | Check for leaks in the exhaust system. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST DW . | ||
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.