Powertrain
generic / SAE
P2407
EVAP Leak Detection Pump Sense Circuit Range/Performance
The leak detection pump returns a sense signal that is electrically valid but does not match the expected response during the pump's self-test or pressure cycle.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 07
Possible causes
- Pump diaphragm worn high
- Sense wiring high resistance medium
- Sensor element aged beyond calibration window 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: medium
- DIY: possible
- Estimated cost: 120–600 €
- Estimated time: 0.5–2 h
- Component: evap leak detection pump
- Component: evap pump wiring
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012