Circuit Description
Vapor pressure sensor and vapor pressure sensor Vacuum Switching Valve (VSV) are used to detect faults in EVAP system. DTC is set if EVAP system leak is detected or vapor pressure sensor malfunctions. Possible causes are:
- Defective vapor pressure sensor.
- Fuel cap is incorrectly installed.
- Defective fuel cap.
- Damaged, disconnected or blocked vacuum hose.
- Damaged fuel tank.
- Defective charcoal canister.