Powertrain
generic / SAE
P04EC
EVAP System Large Leak Detected Fuel Tank Side
Same as P04EA but the leak is large enough that the system cannot build the test pressure or vacuum at all - typically a missing fuel cap, an unseated hose or a torn vapor line on the tank side.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / EC
Possible causes
- Fuel cap missing or not seated high
- Vapor 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: 25–300 €
- Estimated time: 0.2–1.5 h
- Component: fuel cap
- Component: evap hose tank side
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012