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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 >> Without CONSULT-II
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Without 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. Disconnect TP sensor harness connector, and reconnect it within 5 seconds. For location, see Figure -Figure . Wait 20 seconds.
  4. Ensure idle speed is 750-850 RPM (A/T) or 600-700 RPM (M/T) and ignition timing is 4-14° BTDC with transmission in Park or Neutral. If idle speed and ignition timing are not as specified, result will be incomplete. Go to next step.
  5. 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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