DTC Confirmation Test

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.

NOTE: Before performing test, ensure ambient temperature is 32°F (0°C) or more.

Malfunction is detected when canister purge flow is detected when EVAP Canister Purge Volume Control Solenoid Valve (EVAP-CPVCSV) is closed. Possible causes are:

Defective EVAP Control System Pressure Sensor (EVAP-CSPS).
EVAP-CPVCSV stuck open.
Defective EVAP Canister Vent Control Valve (EVAP-CVCV).
Defective EVAP canister.
EVAP system hoses misrouted or plugged.

Start engine and warm to normal operating temperature. Turn ignition off wait at least 10 seconds. Start engine and let idle for at least 20 seconds. If first trip DTC is sets, perform DIAGNOSTIC PROCEDURE . If first trip DTC is not set, problem may be intermittent. See TESTING PROCEDURE under SELF-DIAGNOSTIC SYSTEM.