With GST

Lift up drive wheels.
Start engine (VDC switch OFF) and warm it up to normal operating temperature.
Turn ignition switch OFF and wait at least 10 seconds.
Start engine and wait at least 70 seconds.
Set voltmeter probes to ECM terminals 110 (EVAP control system pressure sensor signal) and ground.

Fig 1: Measuring Voltage At ECM Terminal 110
Courtesy of NISSAN MOTOR CO., U.S.A.
Check EVAP control system pressure sensor value at idle speed and note it.
Establish and maintain the following conditions for at least 1 minute.

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