[ECM] 12167 - EGR Airflow: Airflow through the EGR valve versus vacuum and percent valve opening.

Is this for changing the flow of the EGR Valve ?

I.E.
Setting all to 10 is Reduced flow down to 10 LBS Per Hr ? Or What ?

Thanks.....

2001 GMC 2500HD 6.0L Stock 3.73 RR 4L80E