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Home >> Chevrolet >> 2008 >> Optra LS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 1.6L >> Repair Instructions >> Idle Learn
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Idle Learn

Whenever the throttle body and/or the engine control module (ECM) are replaced, the following idle learn procedure must be performed:

  1. Turn the ignition ON for 5 seconds.
  2. Reset the idle speed control (ISC) system using the scan tool.
  3. Reset the ECM using the scan tool. This is for a replacement ECM only.
  4. Turn the ignition OFF for 10 seconds.
  5. Turn the ignition ON for 10 seconds.
  6. Turn the ignition OFF for 10 seconds.
  7. Start the engine in park/neutral.
  8. Allow the engine to run until the engine coolant is above 85°C (185°F).
  9. Turn the A/C ON.
  10. If the vehicle is equipped with an automatic transaxle, apply the parking brake. While pressing the brake pedal, place the transaxle in drive (D).
  11. Turn the A/C OFF.
  12. Place the transmission into Park.
  13. Turn the ignition OFF. The idle learn procedure is complete.
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