Possible Causes
WARNING: This page is about a different car, the 2002 Nissan Xterra and 2002 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.
Malfunction is detected when EVAP control system has a very large leak, or EVAP control system does not operate properly. Possible causes are:
- Fuel filler cap remains open or fails to close.
- Incorrect fuel tank vacuum relief valve.
- Incorrect fuel filler cap.
- Foreign matter caught in fuel filler cap.
- Leak in line between intake manifold and EVAP-CPVCSV.
- Foreign matter caught in EVAP Canister Vent Control Valve (EVAP-CVCV).
- EVAP canister or fuel tank leaks.
- Leak or blockage in EVAP purge line.
- Blockage in EVAP Control System Pressure Sensor (EVAP-CSPS) hose.
- Defective EVAP-CVCV or circuit.
- Defective EVAP-CPVCSV or circuit.
- Defective Absolute Pressure (AP) sensor (2.4L).
- Defective Fuel Tank Temperature (FTT) sensor.
- EVAP-CVCV "O" ring missing or damaged.
- Defective EVAP-CSPS.
- Defective refueling control valve.
- Leak in On-Board Refueling Vapor Recovery (ORVR) system.