P2B15Cylinder 3 Injection Pulse Offset Exceeded Learning 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
- P2B15 reports that the zero-fuel correction learned for injector 3 has reached Ford's limit. For its 3.0 L six-cylinder diesel Ford adds conditions so the test injection takes place in a defined overrun: engine speed between 890 and 2,400 rpm, a gear from fourth to tenth held without shifting, the torque converter locked and the fuel balance wheel learn already finished. For the 6.7 L V8 engine, TSB 23-2076 from Ford (2020–2022 F-Super Duty) blames incorrect learned values after fuel system repairs and prescribes new PCM and TCM software plus the service function that resets the minimum fuel mass adaption for every cylinder, about 0.7 h of labour. A cylinder 3 balance fault (P0269) or injector performance fault (P02F0) should be ruled out first.
- What you may notice
- Malfunction indicator lamp on
- Possibly knocking or rough running at idle
- Likely causes
- LikelyLearned values unsuitable after fuel system repairs (Ford TSB 23-2076, software and adaption reset)
- PossibleInjector 3 drifted mechanically (wear, coking, internal leakage)
- RareOutdated PCM calibration
- 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 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.