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Home >> Nissan-Datsun >> 2004 >> Maxima SL, RE4F04B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC >> DTC P0442: EVAP Control System >> Diagnostic Procedure >> 7. Check For EVAP Leak >> Without CONSULT-II
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Without CONSULT-II

  1. Turn ignition switch OFF.
  2. Apply 12 volts DC to EVAP canister vent control valve. The valve will close. (Continue to apply 12 volts until the end of test).
    Fig 1: EVAP Canister & Components
    G00874679Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Pressurize the EVAP line using pressure pump with 1.3 to 2.7 kPa (10 to 20 mm Hg, 0.39 to 0.79 in Hg), then remove pump and EVAP service port adapter.
    NOTE:
    • Never use compressed air or a high pressure pump.
    • Do not exceed 4.12 kPa (0.042 kg/cm2 , 0.6 psi) of pressure in the system.
  4. Using EVAP leak detector, locate the EVAP leak. For the leak detector, refer to the instruction manual for more details. Refer to "EVAPORATIVE EMISSION LINE DRAWING ".

OK or NG 

  1. OK: GO TO 8.
  2. NG: Repair or replace.
Fig 2: Typical Leak Detector
G00874680Courtesy of NISSAN MOTOR CO., U.S.A.