Powertrain
generic / SAE
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.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / F9
Possible causes
- Aged solenoid with weakened magnetic force high
- Coked armature with increased friction medium
- Sensor element aged beyond calibration window low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–800 €
- Estimated time: 0.6–2 h
- Component: aftertreatment purge valve
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012