Powertrain
generic / SAE
P2422
EVAP Canister Vent Valve Stuck Closed
The vent valve at the canister end of the EVAP system cannot open. Without ambient air entering the canister, fresh fuel cannot purge the stored vapors and refueling may trigger ORVR issues. Common with rusted or rodent-damaged vent valves.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 22
Possible causes
- Vent valve seized closed high
- Drive circuit open medium
- Carbon or debris buildup preventing free movement low
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 40–350 €
- Estimated time: 0.3–1.5 h
- Component: evap vent valve
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012