350Z V6-3.5L (VQ35) (2003)
Vacuum Brake Booster Check Valve: Testing and Inspection
CHECK VALVE INSPECTION
Airtightness Inspection
Use a hand-held vacuum pump to check.
When connected to booster side (1): Vacuum decrease should be within 1.3 kPa (10 mmHg, 0.39 inch Hg) for 15 seconds under a vacuum of - 66.7
kPa (- 500 mmHg, -19.69 inch Hg)
When connected to engine side (2): No vacuum will be applied