Circuit Description
WARNING: This page is about a different car, the 2002 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
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:
- EVAP hose or tube cracked, damaged or loose.
- Fuel tank cap is installed incorrectly.
- Defective fuel tank cap.
- Damaged, disconnected or blocked vacuum hose.
- Damaged fuel tank.
- Open or short in vapor pressure sensor circuit.
- Defective vapor pressure sensor.
- Defective charcoal canister.
- Defective ECM.