Connect GDS to Data Link Connector (DLC).
Warm engine up to normal operating temperature.
Turn "OFF" electrical devices and A/C.
Monitor "VGT Actuator" parameter on the GDS.
Fig.1) VGT Actuator duty at Idle
Fig.2) VGT Actuator duty at 4965 rpm
Fig.3) VGT Actuator duty at IDLE ~ 4965 rpm