P2C5ECylinder 7 Fuel Injector B Offset Learning At Min Limit
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2C5E belongs to cylinder 7 and therefore to engines with at least seven cylinders, in practice V8s. It is stored when the learned offset of injector B has been driven to its floor: the valve gives more fuel than the model predicts even at the shortest permitted command. On Ford-numbered V8s cylinder 7 is on bank 2, on GM-numbered ones on bank 1, so a rich fuel trim for system B on the matching bank (P2BF1 or P2BF3) supports the finding. Leaking seats, a wrongly rated replacement valve or excess rail pressure are the usual suspects. No manufacturer documents P2C5E publicly; Ford's 2020 to 2025 OBD summaries for its dual-injection V8 do not list it either. It falls under CARB 1968.2 (e)(6.2.2).
- What you may notice
- Check engine light
- Often nothing else noticeable
- Long hot start or rough first seconds, possibly misfire on cylinder 7
- Possibly fuel smell or higher consumption
- Likely causes
- LikelyInjector B of cylinder 7 leaking at the seat and adding fuel after closing
- PossibleReplacement injector of a different flow rating or not matched to the engine software
- PossibleOld learned values not reset after injector or software work
- RareSupply pressure on this injector set higher than the model assumes (regulator)
- 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: €0 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.