With GST

Lift up drive wheels.
Start engine and warm it up to normal operating temperature.
Turn ignition switch OFF, wait at least 10 seconds.
Start engine and wait at least 70 seconds.
Set voltmeter probes to ECM terminals 32 (EVAP control system pressure sensor signal) and ground.
Check EVAP control system pressure sensor value at idle speed and note it.

Fig 1: Setting Voltmeter Probes To ECM Terminal 32 & Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

Establish and maintain the following conditions for at least 1 minute.

Fig 2: Switch Condition Specification
Courtesy of NISSAN MOTOR CO., U.S.A.
Verify that EVAP control system pressure sensor value stays 0.1V less than the value at idle speed (measured at step 6) for at least 1 second.
If NG, GO TO "DIAGNOSTIC PROCEDURE ".