OBD-II code · Powertrain (generic, extended)
P2698 Exhaust Aftertreatment Fuel Injector A Performance
The 7th injector responds to commands but does not deliver expected fuel during regeneration. Coking on the nozzle or worn pressure regulation reduces flow.
Is it safe to drive with P2698?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyCoked nozzle restricts fuel delivery
- PossibleFuel pressure to the dosing line out of tolerance
Symptoms
- Check engine light on
- Misfire or rough idle on the affected cylinder
- Increased fuel consumption
- Possible fuel smell or smoke from exhaust
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–5.5 h
- Emissions test
- Likely to fail
- Parts involved
- Hc Dosing Injector, High Pressure Pump
Related codes
- P2695Cylinder 10 Injector Data Incompatible
- P2696Injector Data Incompatible
- P2697Exhaust Aftertreatment Fuel Injector A Circuit / Open
- P2699Exhaust Aftertreatment Fuel Injector A Circuit Low
- P269AExhaust Aftertreatment Fuel Injector A Circuit High
- P269BExhaust Aftertreatment Glow Plug Control Circuit / Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.