P22ECCylinder 5 Alternative Fuel Injector Control Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P22EC is the plausibility code for the cylinder 5 gas injector circuit on engines with five or more cylinders: wiring and coil pass the basic checks, but the injector does not respond as commanded. California's OBD rule requires such output components to be checked for a proper functional response, and from model year 2019 the maker of an alternate-fueled vehicle submits its own plan for which monitors apply. Ford's patent US 8,161,946 describes one way to do it, judging an injector by whether its current follows the peak-and-hold pattern. No maker publishes P22EC itself. A sticking armature, a heat-aged coil or a weak driver are the usual suspects. Bi-fuel cars may keep running on gas with a rough cylinder 5 or drop back to gasoline.
- What you may notice
- Malfunction indicator lamp on
- Rough cylinder 5 on gas or return to gasoline
- Fuel trim on the affected bank drifts in gas mode
- Likely causes
- LikelySticking armature in the cylinder 5 gas injector
- PossibleHeat-aged coil with drifting resistance
- RareDriver or supply not delivering the full opening current
- 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: €80 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.