P22E5Cylinder 4 Alternative Fuel Injector Control Circuit/Open
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P22E5 is the open-circuit code for the cylinder 4 gas injector; on four-cylinder gas engines it is the last injector of the set. The driver sees no current when it switches the injector on. No maker documents P22E5 in public sources: TransEco and Ford's 2014 list stop at the cylinder 4 Low/High codes P22E6 and P22E7, and TransEco files an open line under Low. Ford's 2003 bi-fuel CNG trucks show a typical layout where gas enters through sleeves in the gasoline injector seats, with the gas injectors driven by a separate module, so connectors sit close to hot engine parts. Expect a switch back to gasoline on bi-fuel cars and a dead cylinder 4 on dedicated gas engines. P0204 is the gasoline counterpart.
- What you may notice
- Malfunction indicator lamp on
- Gas mode unavailable, car runs on gasoline only
- Cylinder 4 dead on a dedicated gas engine
- Likely causes
- LikelyOpen coil in the cylinder 4 gas injector
- PossibleHeat-damaged or brittle connector near the exhaust side
- RareBroken wire in the cylinder 4 injector circuit
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €40 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.