EVAP Control Pressure Sensor

Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister. Do not reuse the O-ring, replace it with a new one.
Install a vacuum pump to EVAP control system pressure sensor.
Turn ignition switch ON and check output voltage between ECM terminal 32 and ground under the following conditions.

Fig 1: ECM Terminals Voltage Specifications (P0453)
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Installing Vacuum Pump To EVAP Control System Pressure Sensor (P0453)
Courtesy of NISSAN MOTOR CO., U.S.A.
CAUTION:
- Always calibrate the vacuum pump gauge when using it.
- Do not apply below -93.3 kPa (-700 mmHg, -27.56 inHg) or pressure over 101.3 kPa (760 mmHg, 29.92 inHg).
If NG, replace EVAP control system pressure sensor.