P22DD: Cylinder 2 Alternative Fuel Injector Control Circuit/Open
Standardized SAE J2012 code · P22xx — Fuel & air metering and auxiliary emission controls
What does P22DD mean?
The drive circuit for the cylinder 2 alternative-fuel injector is open. Bi-fuel vehicles have a second set of injectors for CNG, LPG, or hydrogen — separate from the petrol/diesel injectors.
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 Injector winding open
- Low Pin pushed back out of connector body
- Low Cracked solder joint inside the module or sensor
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P22DD on the same make and model first.
P22DD in the community
Ask about P22DDNo one has posted about P22DD yet
Share your vehicle, the tool you used and what you tested — the first thread helps everyone who searches for this code.
Describe your P22DD problemRelated codes
- P22D9 Cylinder 1 Alternative Fuel Injector Control Circuit/Open
- P22E1 Cylinder 3 Alternative Fuel Injector Control Circuit/Open
- P22E5 Cylinder 4 Alternative Fuel Injector Control Circuit/Open
- P22E9 Cylinder 5 Alternative Fuel Injector Control Circuit/Open
- P22ED Cylinder 6 Alternative Fuel Injector Control Circuit/Open
- P22F5 Cylinder 8 Alternative Fuel Injector Control Circuit/Open