Possible Causes
WARNING: This page is about a different car, the 2002 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
Malfunction is detected when EVAP system has a large leak or does not operate properly. Possible causes are:
- Fuel filler cap open or leaking.
- Incorrect fuel tank vacuum relief valve.
- Incorrect fuel filler cap.
- Foreign matter in fuel filler cap.
- Leak in hose between intake manifold and EVAP Canister Purge Volume Control Solenoid Valve (EVAP-CPVCSV).
- Foreign matter in EVAP Canister Vent Control Valve (EVAP-CVCV).
- Leak in EVAP canister or fuel tank.
- Leak or blockage in EVAP purge line.
- Leak or blockage in hose to EVAP Control System Pressure Sensor (EVAP-CSPS).
- Defective EVAP-CVCV or circuit.
- Defective EVAP-CPVCSV or circuit.
- Defective EVAP-CSPS.
- Defective fuel tank temperature sensor.
- Defective manifold absolute pressure (MAP) senor.
- Leak between EVAP canister and EVAP-CVCV.
- Defective refueling control valve.
- Leak in On Board Refueling Vapor Recovery (ORVR) system.