Powertrain
generic / SAE
P0496
Evaporative Emission System High Purge Flow
The ECU detected EVAP purge flow during a non-purge condition, or higher than commanded purge flow. Typical causes are a stuck-open purge valve or a damaged vent system that draws unmetered air.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / 96
Possible causes
- Purge valve stuck open high
- EVAP line cracked or disconnected medium
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: medium
- DIY: possible
- Estimated cost: 40–400 €
- Estimated time: 0.3–2.5 h
- Component: evap purge valve
- Component: evap lines
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012