Remove the throttle assembly (see Removal the throttle assembly).
Using a Phillips screwdriver, unscrew the two screws securing the regulator to the throttle assembly.
Remove the idle speed control valve.
The connection is sealed with a rubber ring.
We install the idle speed regulator in the reverse order.
For the new regulator, we use a caliper to check the distance between the end of the valve needle and the mounting flange: it should be no more than 23 mm.
This is necessary to avoid damaging the regulator during installation - the regulator needle should not rest against the seat of the throttle assembly.
Before installing the regulator, clean the valve seat, air channel and surface under the regulator sealing ring in the throttle assembly.
Lubricate the regulator sealing ring with engine oil. The tightening torque of the regulator mounting screws is 3–4 N·m.