Connect GDS with 'DATA LINK CONNECTOR'(DLC).
Warm engine up to normal operating temperature.
Turn all the electrical devices including air conditioner OFF.
Monitor "VGT ACTUATOR." parameter on the GDS.
Specification : 50 ~ 95 % at idle
Fig. 1) Sensor data when variable swirl valve closed at idle.
Fig. 2) Sensor data when variable swirl valve opened at acceleration.