Powertrain
generic / SAE
P04ED
EVAP System Large Leak Detected Fresh Air Side
Same as P04EB on the fresh-air side, but with a leak large enough to prevent test build-up. The evaporative system captures fuel vapor from the tank and purges it into intake; leaks or stuck purge valves leak hydrocarbons and cause emissions failures.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / ED
Possible causes
- Vent valve stuck open high
- Hose pulled off or torn 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: easy
- DIY: possible
- Estimated cost: 80–300 €
- Estimated time: 0.4–1.5 h
- Component: evap vent valve
- Component: evap hose fresh air side
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012