After replacing the Mass Air Flow Sensor (MAFS), the "Component Change Routine" procedure should be performed. Otherwise trouble related with engine performance or emission control may occur until ECM learning about the component is completed.
Turn the ignition switch OFF.
Connect the GDS to Data Link Connector (DLC).
Turn the ignition switch ON.
Select "Vehicle, Model year, Engine, System".
Select "Vehicle S/W Management".
Select "Component Change Routine".
Select "Air Flow Sensor Change".
If the message appears, turn the ignition switch OFF and turn the ignition switch ON again in 20 seconds.