Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Infiniti >> 2008 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - Component Testing >> On-Vehicle Maintenance >> EVAP Leak Check >> How to Detect Fuel Vapor Leakage >> Without Consult-III

Without Consult-III

  1. Attach the EVAP service port adapter securely to the EVAP service port.
    Fig 1: Attaching EVAP Service Port Adapter Securely To EVAP Service Port
    G04899996Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Also attach the pressure pump with pressure gauge to the EVAP service port adapter.
    Fig 2: Attaching EVAP Service Port Adapter
    G04874786Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Apply battery voltage between the terminals of EVAP canister vent control valve to make a closed EVAP system.
    Fig 3: Applying Battery Voltage Between Terminals Of EVAP Canister Vent Control Valve
    G04900004Courtesy of NISSAN MOTOR CO., U.S.A.
  4. To locate the leak, deliver positive pressure to the EVAP system until pressure gauge points reach 1.38 to 2.76 kPa (0.014 to 0.028 kg/cm2 , 0.2 to 0.4 psi).
  5. Remove EVAP service port adapter and hose with pressure pump.
  6. Locate the leak using a leak detector. Refer to "DESCRIPTION ".
scientia non olet · About Mike's Workshop Manuals