The idle speed controller serves to maintain the set idle speed of the engine unchanged when it is started, warmed up and load changes caused by the inclusion of auxiliary equipment
The regulator is a spool valve with electromagnetic control and serves to supply additional air to the intake pipe, bypassing the throttle.
If the idle speed controller fails or there is no contact in the plug block, the stability of the idle speed is disturbed (the speed “floats”).
The indicator lamp in the instrument cluster comes on.
If the idle speed is unstable and the control lamp does not light up, it is necessary to check the tightness of the connecting hoses.
Disconnect the wire from the "negative" terminal of the battery.
Loosen the clamps and disconnect hoses 1 and 2 from the regulator 5.
Disconnect the wiring harness from the connector 4 of the regulator
Unscrew the two mounting bolts 3 and remove the regulator.
Remove regulator 5 from clamp 6.
Install the new idle air control in reverse order.
Checking the secondary air regulator
Turn off the ignition and remove the negative terminal from the battery.
Using an awl or a thin screwdriver, unclip the block clamp and disconnect the regulator connector.
Using an ohmmeter, we measure the resistance of the two windings of the regulator, for which we connect one probe of the device to the central terminal, and the other, alternately to the outer terminals.
In a working regulator, the resistance of each winding should be in the range of 10–14 Ohms.
Having removed the regulator from the engine, we put a piece of PVC tube onto the central terminal and insert the end of the bare wire into it.
Connect the central terminal with the positive of the battery, the negative - alternately with the outer ones.
In one case the damper should open completely, in the other it should close
If this does not happen, lightly shake the regulator to ensure that the valve is not stuck.
We replace the faulty regulator.
Removing the secondary air regulator
We loosen the clamp with a screwdriver
Remove the air supply hose.
Use a screwdriver to loosen the lower hose clamp.
Using a 10mm wrench, unscrew the two bolts securing the regulator to the intake system receiver.
Remove the regulator assembly with the bracket by removing the lower pipe of the regulator from the hose.
Remove the steel clamp and rubber tube from the regulator.
Install the regulator in reverse order
During installation, we are guided by the diameter of the regulator pipes - the supply pipe is larger and should be located on top