Component Inspection

WARNING: This page is about a different car, the 2010 Infiniti G37. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUEL TANL VACUUM RELIEF VALVE
1. Turn ignition switch OFF.
2. Remove fuel filler cap.
3. Wipe clean valve housing.
  
  Fig 1: Identifying Plate, Gasket, Spring, Pressure Valve And Vacuum Valve
  Courtesy of NISSAN NORTH AMERICA, INC.
4. Check valve opening pressure and vacuum.
  Pressure: 15.3 - 20.0 kPa (0.156 - 0.204 kg/cm ² , 2.22 - 2.90 psi)
  
  Vacuum: -6.0 to -3.3 kPa (-0.061 to -0.034 kg/cm ² , -0.87 to -0.48 psi)
  
  Fig 2: Checking Valve Opening Pressure And Vacuum
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  Is the inspection result normal?
  
  YES: INSPECTION END
  
  NO: GO TO 2.
REPLACE FUEL FILLER CAP
Replace fuel filler cap.

CAUTION: Use only a genuine fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may illuminate.

INSPECTION END