Throttle Body: Adjustments

Basic setting of throttle butterfly (LH 2.4)

Basic setting should be carried out:
after repair work on the engine induction system if idling speed is too high (engine cold or at normal operating temperature)

Note: Basic setting should always be carried out with the engine cold, temperature about 20°C (68°F), and the ignition switched off. Basic setting cannot be carried out accurately when the engine is hot due to excessive clearance between the throttle butterfly and the throttle body (because the inside diameter of the throttle body increases more than the diameter of the throttle butterfly as the temperature rises).





1 Undo the throttle position sensor retaining screws and rotate the sensor clear of the throttle butterfly'

Make sure that the throttle cable is slack.

2 Undo the butterfly locknut, using nut driver 83 94 332 and turn the adjusting screw until the throttle butterfly is fully closed (abuts firmly against the inner wail of the throttle body).

Then turn the adjusting screw half a turn (1800) clockwise and tighten the locknut, taking care not to alter the setting.

3 Reset the throttle position sensor (closed in the idling position) and tighten the retaining screws.

Check the setting. When the butterfly leaves the idling position a clicking sound should be heard from the sensor.