nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Fuel Delivery and Air Induction > < Diagram Information and Instructions|Page 6856
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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.

Fuel Delivery and Air Induction > < Diagram Information and Instructions|Page 6856