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Home >> Nissan-Datsun >> 2002 >> Sentra CA >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 1.8L - Ca >> Programming >> Idle Air Volume Learning >> With CONSULT-II
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With CONSULT-II

  1. Turn ignition on and wait at least one second. Turn ignition off and wait at least 10 seconds. Start engine and warm to normal operating temperature.
  2. Ensure all conditions under PRE-CONDITIONING  are met. Turn ignition off and wait at least 10 seconds. Start engine and let it idle for at least 30 seconds.
  3. Select IDLE AIR VOL LEARN in WORK SUPPORT mode with CONSULT-II. Press START and wait 20 seconds.
  4. Ensure CMPLT is displayed. Quickly increase engine speed 2 or 3 times. Ensure idle speed is 750-850 RPM (A/T) or 600-700 RPM (M/T) and ignition timing is 4-14 degrees BTDC with transmission in Park or Neutral.
  5. If INCMP is displayed, proceed as follows:
    • Ensure throttle valve is fully closed.
    • Check PCV valve operation.
    • Ensure no vacuum leaks exist.
    • Adjust closed TP switch and reset memory. See ON-VEHICLE ADJUSTMENTS article.

    If problem is found, repair as necessary. If problem is not found, It may be helpful to perform TROUBLE DIAGNOSIS - SPECIFICATION VALUE. See TROUBLE SHOOTING - NO CODES article. If engine stalls or idle speed fluctuates, repair cause of condition and repeat procedure.

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