What does code P2698 mean?

Q: What does code P2698 mean?

Exhaust Aftertreatment Fuel Injector A Performance. P2698 means the engine computer has commanded the exhaust aftertreatment fuel injector (often called the seventh injector or regeneration injector) to spray fuel into the exhaust stream, but the resulting change in exhaust temperature or pressure did not match what the computer expected. The computer monitors the injector circuit and the downstream exhaust sensors, and when the expected temperature rise or pressure change fails to occur within a calibrated window, it sets this performance code.

DTC codes / P26xx · Computer and output circuits / P2698

P2698Exhaust Aftertreatment Fuel Injector A Performance

P2698 means the engine computer has commanded the exhaust aftertreatment fuel injector (often called the seventh injector or regeneration injector) to spray fuel into the exhaust stream, but the resulting change in exhaust temperature or pressure did not match what the computer expected. The computer monitors the injector circuit and the downstream exhaust sensors, and when the expected temperature rise or pressure change fails to occur within a calibrated window, it sets this performance code.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaComputer and output circuits

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.