Examination
1. If you suspect the system is faulty, disconnect the hoses from the air intake solenoid valve and check that they are not clogged by blowing through them. The solenoid valve is located on the left side of the intake manifold and the air intake valve is located on the left front suspension mount.
2. The solenoid valve can be checked as follows. If desired, the valve can be removed following the instructions in subsection 6.4.2.6.1 to improve access.
3. Connect a 12 volt power source to the solenoid valve as shown for carbureted models with a catalytic converter. Blow into port "A" - air should pass through the valve and exit through port "B". Blow into port "B" and check that no air passes through the valve.
4. If the solenoid valve does not work as expected, it is faulty and needs to be replaced.
5. To check the air inlet valve, first remove it following the instructions in subsection 6.4.2.6.2, then check it as follows.
6. Blow into port "B" and check that the valve does not let air through. Pump out air from port "A" and blow into port "B" - air should pass through the valve and come out of port "C". Blow into port "C" and check that air does not pass through the valve in both cases, whether there is a vacuum on port "A" or not.
7. If the valve does not work as expected, it is faulty and needs to be replaced.
Control solenoid valve
The control solenoid valve is installed on the left side of the intake manifold.
Replacement
1. The control solenoid valve is installed on the left side of the intake manifold.
2. To replace the solenoid valve, disconnect the negative battery cable. Then, squeeze the retaining clip and disconnect the valve connection connector.
3. Remember the installation position of all hoses on the valve. In order not to mix them up during installation, mark each of the hoses and pipes when removing.
4.Release the clamps (if installed) and disconnect the hoses from the valve.
5. Remove the valve from the mounting bracket and remove it from the engine compartment.
6. Installation is carried out in the reverse order of removal. When installing, check that the hoses are connected correctly.
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7. If the valve does not work as expected, it is faulty and needs to be replaced.
Air intake valve
The bolts for fastening the hoses to the valve are indicated by arrows.
The air intake valve is installed on the left mount of the front suspension strut.
Replacement
1. To replace the valve, loosen the clamps (if installed) and disconnect the hoses from the valve.
2. Loosen the mounting bolts and remove the valve.
3. Installation is carried out in the reverse order of removal. When installing, check the correctness of the hose connections and secure them with clamps (if necessary).