Low and Middle Load
High Load
Engine speed
Below 2,500 rpm
Above 2,500 rpm
Valve operation
CLOSE
OPEN
Description
illustration
Fail-safe
Fully opened
Variable Swirl Actuator consists of DC motor and position sensor which detects the position of the swirl valve.
At idle or below 2,500rpm, the swirl valve is closed. This swirl effect increases air flow rate.
Low and Middle Load | High Load | |
Engine speed | Below 2,500 rpm | Above 2,500 rpm |
Valve operation | CLOSE | OPEN |
Description illustration | | |
Fail-safe | Fully opened | |
To prevent the swirl valve and the shaft from being stuck by foreign material and to learn max opening and closing position of the valve, the ECM fully opens and closes the valve twice when engine is being stopped.
