P22F8Cylinder 8 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
- Functional code for the cylinder 8 gas injector circuit, meant for cases where wiring is intact but the valve reacts outside the expected window. No manufacturer documents this code publicly. Both at Ford (2014 list) and at Altech-Eco/TransEco the series stops at P22F6/P22F7 for this cylinder. The reference is therefore CARB, which asks for a check of proper functional response of output components and lets the maker define when it runs. Plausible triggers would be a valve that opens late or not fully, contamination from the gas supply, or a heat-soaked coil at the rear of the engine. Unlike the circuit codes, the fault may show only under certain loads, so a confirmation drive is usually needed after repair.
- What you may notice
- Hesitation under load in gas mode
- Cylinder 8 misfire code possible
- Check engine light possible
- Likely causes
- PossibleCylinder 8 gas valve opening late or partly due to contamination
- PossibleCoil degraded by heat at the rear of the engine
- RareContact resistance in the injector plug
- 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: €100 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.