P2C54Cylinder 2 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
- P2C54 concerns injector B of cylinder 2 and the lower limit of its learned offset. Reaching the floor means the control had to keep cutting the opening time because the injector delivers too much, typically at the short pulses where dead time dominates. Plausible reasons are a seat that drips after closing, a replacement injector of a different flow class, or a rail pressure higher than the model assumes. Whether cylinder 2 sits on bank 1 or bank 2 depends on the numbering: in-line engines have one bank, GM V engines put even cylinders on bank 2, Ford V engines count cylinders 1 to 4 on bank 1. No maker documents P2C54 publicly, and Volvo's bulletin for this injector family lists only the Max code P2C55. The legal basis is 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 2
- Possibly fuel smell or higher consumption
- Likely causes
- LikelyInjector B of cylinder 2 leaking at the seat and adding fuel after closing
- PossibleReplacement injector of a different flow rating or not matched to the engine software
- PossibleLearned values or engine software not up to date (Volvo pairs an update with an adaptation reset for the related Max codes)
- 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 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.