P268DCylinder 2 Injector Data Incompatible
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P268D concerns the stored flow correction for the injector in cylinder 2. In GM's 2016 four-cylinder diesel table (16OBDG04) the test runs with ignition on and passes once the end-of-line injector adjustment (EIA) value has been written via DID $61; a missing value only counts as a failure when the manufacturer enable counter is zero, i.e. on a finished production controller. The code is Type A there and in GM's 2020 V8 diesel table. Where cylinder 2 physically sits depends on the maker's numbering. Ford's 2023 diesel summary also uses P268D. CARB wants the stored code to point to the injector with the wrong compensation, hence one code per cylinder.
- What you may notice
- Check engine light on
- Slight misfire feel or noise from cylinder 2
- Likely causes
- LikelyAdjustment value of the cylinder 2 injector not programmed after replacement
- PossibleInjectors moved between cylinders without updating codes
- RareProgramming session aborted (voltage drop, communication loss)
- 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: €50 – €250
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.