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 MANUALSFORD2021EDGE SE, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 744 (ENGINE CONTROLS - POWERTRAIN DTC DESCRIPTIONS (EXCEPT DIESEL & HYBRID) - DTC P0001 - P0238)DTC P014A - O2 SENSOR DELAYED RESPONSE - RICH TO LEAN (BANK 2 SENSOR 2)
2021 Ford Edge SE, 4WD
DTC P014A - O2 Sensor Delayed Response - Rich To Lean (Bank 2 Sensor 2)
2021 Ford Edge SE, 4WDSECTION DTC P014A - O2 Sensor Delayed Response - Rich To Lean (Bank 2 Sensor 2)
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DTC DESCRIPTION P014A - O2 SENSOR DELAYED RESPONSE AND RICH TO LEAN (BANK 2 SENSOR 2)
| Description: | During a deceleration fuel shut-off (DFSO) event, the PCM monitors the heated oxygen sensor bank 2, sensor 2 (HO2S22) signal to determine if the signal is stuck in range. The PCM expects the signal to exceed a calibrated rich or lean value within a calibrated amount of time. If the signal voltage remains less than the rich value after a number of occurrences, the PCM intrusively controls the fuel system rich over increasing time periods in an attempt to force the signal to greater than the calibrated rich value. This DTC sets when, after three consecutive intrusive attempts, the signal cannot be forced greater than the calibrated rich value. Also, if the signal voltage remains greater than the lean value after a calibrated amount of time with the fuel injectors off, a counter is incremented. This DTC sets when after three consecutive occurrences the signal is not less than the calibrated lean value. |
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| Possible Causes: |
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| Diagnostic Aids: | Check for leaks in the exhaust system. Check for an intermittent HO2S22 signal. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST DW . | ||
RENDER: 1.0x
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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.