Replacing the idle speed control sensor (Kalina 1118)

On a vehicle, the idle air control valve regulates the engine speed at idle by controlling the amount of air supplied to the engine when the throttle valve is closed. The idle speed controller consists of a two-pole stepper motor and a cone valve connected to it. The valve extends or retracts according to signals from the controller. Idle speed control needle fully extended (which corresponds to 0 steps) blocks the air flow. When the needle is pushed in, an air flow is provided proportional to the number of steps the needle moves away from the seat. The idle speed control valve is located on the throttle body.

To replace the idle speed control sensor (idle speed controller) on a car you will need a Phillips head screwdriver.

1. Disconnect the wire from the negative terminal of the battery.

2. Press the plastic latch and disconnect the wire harness connector from the idle air control valve mounted on the throttle body.



3. Remove the two mounting screws and remove the idle speed control valve from the throttle assembly (for clarity, the throttle assembly has been removed).



4. Replace the idle speed control valve sealing ring if it is torn or has lost its elasticity.

5. Install the idle speed control valve in the reverse order, lubricating its sealing ring with engine oil.