OBD-II code · Powertrain (generic, extended)
P24F9 Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit Range/Performance
The valve coil is electrically intact, but the response (current rise time, return-current decay, position feedback) does not match the ECM model. Typical for solenoids losing magnetic strength after long thermal cycling, or armatures with increased friction from coking.
Is it safe to drive with P24F9?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyAged solenoid with weakened magnetic force
- PossibleCoked armature with increased friction
- Less likelySensor element aged beyond calibration window
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.6–2 h
- Emissions test
- Likely to fail
- Parts involved
- Aftertreatment Purge Valve
Related codes
- P24F8Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit
- P24F6Exhaust Aftertreatment Fuel Air Purge Valve Stuck Open
- P24F7Exhaust Aftertreatment Fuel Air Purge Valve Stuck Closed
- P24FAExhaust Aftertreatment Fuel Air Purge Valve Control Circuit Low
- P24FBExhaust Aftertreatment Fuel Air Purge Valve Control Circuit High
- P24FCParticulate Matter Sensor Heater Control Circuit Driver Current/Temperature Too High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.