Idle Air Volume Learning: Description

Idle Air Volume Learning is a function of ECM to learn the idle air volume that keeps each engine idle speed within the specific range. It must be performed under any of the following conditions:

• ECM is replaced.
• Engine assembly is replaced.
• Electric throttle control actuator is replaced or removed.
• Turbocharger assembly is replaced or removed.
• Idle speed or ignition timing is out of specification.

Refer to Work Procedure .