Throttle Body: Inspection
- Check the throttle body for cracks.
- Check for restriction in the vacuum port or passage
- Check for interference when moving the accelerator cable.
CAUTION:
- Throttle valve set screw was adjusted in the production line with the air volume (0.516 +/- 5% g/sec) during idling. So please DO NOT ADJUST IT voluntarily.
- When the idle RPM is out of specification, check the relevant sensors and their input or output value first.
- The throttle body does not need to be cleaned because carbon in throttle body does not affect the system's operation at all.
Courtesy of HYUNDAI MOTOR CO.