Air Fuel Ratio Initial Learning: Description

Air fuel ratio initial learning of ECM to learn the air fuel ratio that keeps each engine idle speed within the specific range. It must be performed under any of the following conditions:

• When ECM is replaced ^*
• When engine assembly is replaced ^*
• When electric throttle control actuator is replaced ^*
• When mass air flow sensor is replaced
• When direct fuel injector is replaced
• When multi port fuel injector is replaced

Refer to Work Procedure .