Description And Operation: Description

• The electronic recirculation valve (E-RCV) is integrated with a solenoid valve and a mechanical recirculation valve.
• When the throttle valve is closed during engine running [Tip-out], blow-off noise of the impeller will occur because of rapid increasing of the boost pressure. So, in this case, in order to prevent this phenomenon, ECM maintains the appropriate boost pressure by opening the by-pass passage.

Courtesy of KIA MOTORS AMERICA, INC.