P22DE: Cylinder 2 Alternative Fuel Injector Control Circuit Low
Standardized SAE J2012 code · P22xx — Fuel & air metering and auxiliary emission controls
What does P22DE mean?
Cylinder 2 alternative-fuel injector drive line stuck low — short to ground. A flow-deviating injector throws off cylinder balance — adjacent cylinders run leaner/richer to compensate, often masking the root cause until the trim limit is hit.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Check engine light on
- Misfire or rough idle on the affected cylinder
- Increased fuel consumption
- Possible fuel smell or smoke from exhaust
Common causes
- High Short to ground
- Low Connector pins corroded - high contact resistance
- Low Harness chafing through insulation
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P22DE on the same make and model first.
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Describe your P22DE problemRelated codes
- P22DA Cylinder 1 Alternative Fuel Injector Control Circuit Low
- P22DD Cylinder 2 Alternative Fuel Injector Control Circuit/Open
- P22E2 Cylinder 3 Alternative Fuel Injector Control Circuit Low
- P22E6 Cylinder 4 Alternative Fuel Injector Control Circuit Low
- P22EA Cylinder 5 Alternative Fuel Injector Control Circuit Low
- P22EE Cylinder 6 Alternative Fuel Injector Control Circuit Low
- P22F2 Cylinder 7 Alternative Fuel Injector Control Circuit Low
- P22F6 Cylinder 8 Alternative Fuel Injector Control Circuit Low