Powertrain
generic / SAE
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.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number6 / 98
Possible causes
- Coked nozzle restricts fuel delivery high
- Fuel pressure to the dosing line out of tolerance medium
Symptoms
- Check engine light on
- Misfire or rough idle on the affected cylinder
- Increased fuel consumption
- Possible fuel smell or smoke from exhaust
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 300–2000 €
- Estimated time: 1.5–5.5 h
- Component: hc dosing injector
- Component: high pressure pump
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012