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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P0456: EVAP Control System >> Diagnostic Procedure >> 6. Check For EVAP Leak >> With CONSULT-II
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With CONSULT-II

  1. Turn ignition switch ON.
  2. Select "EVAP SYSTEM CLOSE" of "WORK SUPPORT" mode with CONSULT-II.
    Fig 1: Scan Tool Display - Work Support
    G00796122Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Touch "START" and apply pressure into the EVAP line until the pressure indicator reaches the middle of the bar graph.
    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.
    Fig 2: Identifying EVAP Leak Detector
    G00796123Courtesy of NISSAN MOTOR CO., U.S.A.

    Refer to EVAPORATIVE EMISSION LINE DRAWING .

OK or NG 

  1. OK: GO TO 8. CHECK WATER SEPARATOR .
  2. NG: Repair or replace.