Kia Optima: Electric WGT Control Actuator. Description and OperationIt operates the vain in the Waste Gate Turbocharger (WGT) and regulates the compressed air amount by the ECM's PWM signal. This actuator consists of a DC motor which actuates the vane, a 2-step gear which increases torque of the DC motor, a position sensor which detects status of the vane, an electric control unit which drives the DC motor.

Installation
Electric WGT Control Actuator. Components and Components LocationComponents Location
1. Sub frame
2. Assist arm
3. Trailing arm
4. Rear disc
5. Rear upper arm
6. Rear shock absorber
7. Coil spring
...
Replacement
1.
Disconnect the negative (-) battery
terminal.
2.
Loosen the mounting screw and
then remove the crash pad lower cover (A).
3.
Remove the eva ...
Removal
1.
Disconnect the negative(-) battery
terminal.
2.
Remove the lens trunk trim.
(Refer to the BD group - "Trunk")
3.
Replace the bulb (A) ...