VARIABLE SWIRL CONTROL OPERATION[L3 Turbo]

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Operation Conditions

• When all of the following conditions are met, the PCM energizes the coil of variable swirl solenoid valve. As a result, negative pressure is introduced to the diaphragm chamber of the variable swirl shutter valve actuator, pulling the actuator rod and closing the variable swirl shutter valve.

― Engine coolant temperature: less than 60 °C

― Engine speed is less than 3,250 rpm

― Accelerator pedal position: 3 % or less, or engine load: threshold or less

Inhibition Conditions

• When a DTC for the engine coolant temperature sensor or MAF sensor has been stored, the variable swirl control is inhibited and the variable swirl shutter valve is constantly open.