I changed the idle control valve, it idles at 1500 rpm. The short hose was replaced, but I was not able to replace the long hose connected to the intake. The long hose is broken, and it was taped with black tape. Prior to the new idle control valve replacement, I cleaned the old valve with carb cleaner. It worked for a week, then it idle to about 1500 rpm.

Is the broken hose (air leak) caused the problem, or something elso.

Jack