P24F6Exhaust Aftertreatment Fuel Air Purge Valve Stuck Open
On systems that inject HC dosing fuel or AIR-assisted reductant into the aftertreatment, a purge valve clears the line after each dosing event. The ECM detects the valve stuck open — pressure or flow does not build up against a closed valve, so the dosing line cannot be charged. Common on diesel HC-doser hardware (DPF regen support).
Can I keep driving? With caution
You can drive to the shop, but do not postpone the repair. The problem may worsen and damage other components.
Sistema Afectado
Motor · Powertrain
La falla pertenece al grupo motopropulsor (motor y gestión electrónica).
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Possible Causes
The components or conditions that trigger this code
- 1Mechanically stuck open valve from soot or coking Broken return spring Carbon or debris buildup preventing free movement
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: medium. Estimated time: 0.6-2.5 hours. Estimated cost: €200-€
- 2Professional repair recommended
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
Varies by diagnosis
* Diagnosis only: $50–$150
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