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Home >> Infiniti >> 2010 >> M45 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Introduction >> Service Information >> Evaporative Emission System >> How to Detect EVAP Leakage >> Without Consult-III
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Without Consult-III

  1. Attach the EVAP service port adapter (commercial service tool) securely to the EVAP service port.
  2. Also attach the pressure pump with pressure gauge to the EVAP service port adapter.
    Fig 1: 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 (1) to make a closed EVAP system.
    • Illustration shows the view from under the vehicle
    • Vehicle Front
    • EVAP canister (2)
    • EVAP control system pressure sensor (3)
    Fig 2: Identifying EVAP Canister Vent Control Valve To EVAP Canister
    G05209408Courtesy of NISSAN MOTOR CO., U.S.A.
  4. To locate the leakage, 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 (commercial service tool) and hose with pressure pump.
  6. Locate the leakage using a leak detector (commercial service tool). Refer to "DESCRIPTION ".