Maxima SE V6-2968cc 3.0L DOHC MFI (VQ30DE) (1997)
Leak Detection Sensor: Testing and Inspection
COMPONENT INSPECTION
1. Remove EVAP control system pressure sensor from bracket with its harness connector connected.
2. Remove hose from EVAP control system pressure sensor.
3. Apply vacuum and pressure to EVAP control system pressure sensor with pump as shown in figure.
4. Check output voltage between terminal Q2 and engine ground.
Pressure (Relative to atmospheric pressure) / Voltage (V)
+4.O kPa (+3O mmHg, +1.18 inHg) / Approximately 4.6
-9.3 kPa (-70 mmHg, -2.76 inHg) / Approximately 0.5
CAUTION: Always calibrate the vacuum pump gauge when using it.
5. If NG, replace EVAP control system pressure sensor.