With CONSULT-II

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

Remove EVAP canister vent control valve from EVAP canister.
Check portion B of EVAP canister vent control valve for being rusted.

Fig 1: Checking Portion B For Rust
Courtesy of NISSAN MOTOR CO., U.S.A.

If NG, replace EVAP canister vent control valve.

If OK, go to next step.
Reconnect harness connectors disconnected.
Turn ignition switch ON.
Perform "VENT CONTROL/V" in "ACTIVE TEST" mode.

Fig 2: Displaying ACTIVE TEST Screen
Courtesy of NISSAN MOTOR CO., U.S.A.
Check air passage continuity and operation delay time.
Make sure new O-ring is installed properly.

Fig 3: Checking Air Passage Continuity And Operation Delay Time
Courtesy of NISSAN MOTOR CO., U.S.A.

Operation takes less than 1 second.

If NG, replace EVAP canister vent control valve.

If OK, go to next step.
Clean the air passage (Portion A to B ) of EVAP canister vent control valve using an air blower.
Perform step 6 again.