What does code P24F7 mean?

Q: What does code P24F7 mean?

Exhaust Aftertreatment Fuel Air Purge Valve Stuck Closed. P24F7 indicates that the powertrain control module (PCM) has commanded the exhaust aftertreatment fuel air purge valve to open, but the valve remains stuck closed, preventing the intended air purge from reaching the exhaust system. The PCM detects this by monitoring the valve's electrical circuit or the resulting change in exhaust oxygen content and sets the code when the expected response does not occur.

DTC codes / P24xx · Auxiliary emission controls / P24F7

P24F7Exhaust Aftertreatment Fuel Air Purge Valve Stuck Closed

P24F7 indicates that the powertrain control module (PCM) has commanded the exhaust aftertreatment fuel air purge valve to open, but the valve remains stuck closed, preventing the intended air purge from reaching the exhaust system. The PCM detects this by monitoring the valve's electrical circuit or the resulting change in exhaust oxygen content and sets the code when the expected response does not occur.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

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