Nissan Maxima Service and Repair Manual: Evap leak check

Inspection

CAUTION:

  •  Never use compressed air or a high pressure pump.
  •  Never exceed 4.12 kPa (0.042 kg/cm2, 0.6 psi) of pressure in EVAP system.

NOTE:

  •  Do not start engine.
  •  Improper installation of  EVAP service port adapter (commercial service tool) to the EVAP service port may cause a leakage.

WITH CONSULT

Nissan Maxima. EVAP LEAK CHECK

  1. To locate the EVAP leakage, install EVAP service port adapter (commercial service tool) and pressure pump to EVAP service port.
  2. Turn ignition switch ON.
  3. Select the "EVAP SYSTEM CLOSE" of "WORK SUPPORT MODE" with CONSULT.
  4. Touch "START". A bar graph (Pressure indicating display) will appear on the screen.
  5. Apply positive pressure to the EVAP system until the pressure indicator reaches the middle of the bar graph.
  6. Remove EVAP service port adapter (commercial service tool) and hose with pressure pump.
  7. Locate the leakage using a leakage detector (commercial service tool). Refer to EC-94, "System Diagram".

Nissan Maxima. EVAP LEAK CHECK

WITHOUT CONSULT

Nissan Maxima. WITHOUT CONSULT

  1. To locate the EVAP leakage, install EVAP service port adapter (commercial service tool) and pressure pump to EVAP service port.
  2. Apply battery voltage between the terminals of  EVAP canister vent control valve to make a closed EVAP system.
  3. 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).
  4. Remove EVAP service port adapter (commercial service tool) and hose with pressure pump.
  5. Locate the leakage using a leakage detector (commercial service tool).

Nissan Maxima. WITHOUT CONSULT

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    Nissan Maxima Service and Repair Manual

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