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Home >> Infiniti >> 2005 >> Q45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Introduction >> Basic Service Procedure >> Idle Air Volume Learning >> Operation Procedure >> With CONSULT-II
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With CONSULT-II

  1. Perform "ACCELERATOR PEDAL RELEASED POSITION LEARNING ".
  2. Perform "THROTTLE VALVE CLOSED POSITION LEARNING ".
  3. Start engine and warm it up to normal operating temperature.
  4. Check that all items listed under the topic PREPARATION (previously mentioned) are in good order.
  5. Select "IDLE AIR VOL LEARN" in "WORK SUPPORT" mode.
    Fig 1: Idle Air VOL Learn Display
    G02369301Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Touch "START" and wait 20 seconds.
    Fig 2: Engine Speed Display
    G02369302Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Make sure that "CMPLT" is displayed on CONSULT-II screen. If "CMPLT" is not displayed, Idle Air Volume Learning will not be carried out successfully. In this case, find the cause of the incident by referring to the DIAGNOSTIC PROCEDURE below.
  8. Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications.
    ITEM SPECIFICATION

    ITEM SPECIFICATION
    Idle speed 650 +/- 50 rpm (in P or N position)
    Ignition timing 12 +/- 5° BTDC (in P or N position)
    Fig 3: Air Volume Learning Display
    G02369303Courtesy of NISSAN MOTOR CO., U.S.A.