GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Epica 🢒 Engine 🢒 Engine Controls and Fuel - 2.0L and 2.5L 🢒 Idle Learn

The Procedure listed below needs to be performed whenever the following occurs:

    • The throttle body assembly is replaced
    • The throttle body is cleaned
    • The ECM is replaced or programmed
  1. Turn OFF all accessories.
  2. Ignition ON, engine OFF, clear the DTCs with a scan tool.

    3. Important: The ECM must be reset with the ignition ON and the engine OFF or a stalling condition may occur.

  3. Reset the ECM learned values with a scan tool.
  4. Turn OFF the ignition for 20 seconds.
  5. Turn ON the ignition for 10 seconds.
  6. Turn OFF the ignition for 20 seconds.
  7. Turn ON the ignition for 10 seconds.
  8. Start the engine in park/neutral.
  9. Turn OFF the ignition. The idle learn procedure is complete.