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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 2387 (Engine Control System - Introduction) >> Evaporative Emission System >> How to Detect Fuel Vapor Leakage >> Without Consult-II

Without Consult-II

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. Attach the EVAP service port adapter securely to the EVAP service port.
  2. Fig 1: Attaching EVAP Service Port Adapter
    G04874786Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Also attach the pressure pump with pressure gauge to the EVAP service port adapter.
  4. Apply battery voltage between the terminals of EVAP canister vent control valve to make a closed EVAP system.
    Fig 2: Identifying EVAP Control System Pressure Sensor
    G04911422Courtesy of NISSAN MOTOR CO., U.S.A.
  5. 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).
  6. Remove EVAP service port adapter and hose with pressure pump.
  7. Locate the leak using a leak detector. Refer to "EVAPORATIVE EMISSION LINE DRAWING ".