OBD-II code · Powertrain (generic, extended)
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.
Is it safe to drive with P2407?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPump diaphragm worn
- PossibleSense wiring high resistance
- Less likelySensor element aged beyond calibration window
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Evap Leak Detection Pump, Evap Pump Wiring
Related codes
- P2404EVAP Leak Detection Pump Sense Circuit Range/Performance
- P2405EVAP System Leak Detection Pump Sense Circuit Low
- P2406EVAP System Leak Detection Pump Sense Circuit High
- P2408Fuel Cap Sensor/Switch Circuit Range/Performance
- P2409Fuel Cap Sensor or Switch Circuit Range or Performance
- P240AEVAP System Leak Detection Pump Heater Control Circuit Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.