Frequency of rotation of idling is established at factory and does not demand adjustment while in service the car. However at replacement of throttle knot if the screw of adjustment of frequency of rotation of idling rotated, it is necessary to inspect and adjustment of frequency of rotation of idling at servicing deport.
Valve IAC operates quantity of air arriving bypassing throttle заслонки in cylinders of the engine on frequency of rotation of idling. The valve copes the block of engine management depending on engine loading (an air conditioning, a steering drive with the amplifier) and an operational mode (the cold or hot engine).
Replacement of the valve of a control system with frequency of rotation of idling (IAC) make as follows:
– Remove throttle knot;
– Turn out screws and remove the valve of a control system of frequency of rotation of idling and its lining;
Installation make in sequence, return to removal. At installation use a new lining.
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Fig. 7.23. An arrangement of the valve of a control system of frequency of rotation of idling (IAC) on models till 2001 of release
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Fig. 7.24. An arrangement of the valve of a control system of frequency of rotation of idling (IAC) on models since 2001 of release
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