Powertrain
generic / SAE
P2403
EVAP System Leak Detection Pump Sense Circuit Open
The leak detection pump (LDP) - which actively pressurises the EVAP system to find leaks - has an open sense circuit. The ECU cannot read the pump status during the diagnostic cycle.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 03
Possible causes
- Open in pump or sense wiring high
- Pin pushed back out of connector body low
- Cracked solder joint inside the module or sensor 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: 120–500 €
- Estimated time: 0.6–2 h
- Component: evap leak detection pump
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012