Powertrain
generic / SAE
P04EB
EVAP System Small Leak Detected Fresh Air Side
Same as P04EA but on the fresh-air side - the path between vent valve and atmosphere is not sealing completely during the active test phase.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / EB
Possible causes
- Vent valve does not seal in test mode high
- Hose porous or cracked 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: 80–350 €
- Estimated time: 0.5–2 h
- Component: evap vent valve
- Component: evap canister
- Component: evap hose fresh air side
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012