Your car doesn't have a carby, it's fuel injected with an electronic throttle valve actuator, basically the throttle valve is opened via gears and an electronically controlled motor.
The early actuators had a problem where they exceeded production tolerances and caused loud chatter at idle and even stalling issues.
If your car isn't stalling or have any other issues I wouldn't be to concerned.
You don't want to know how much it's worth