1. We clean the electropneumatic valve from dirt.
2. To check the tightness, disconnect the rubber hoses from the valve fittings. By connecting a clean hose to the central fitting, we create a vacuum with our mouth.
Air should not pass through a closed serviceable valve.
3. To check the operation of the valve, turn on the ignition. A serviceable valve should open, and when a vacuum is applied to the central fitting, air should pass. When disconnecting and connecting one of the valve power wires, it should work with a characteristic click.
4. Turn off the ignition.
5. To replace the valve, disconnect the wires from the valve outlets and the rubber hoses from the valve fittings.
6. Using an 8 mm socket wrench, unscrew the nut securing the valve to the stud on the mudguard and remove the valve.
Installation
The valve is installed in the reverse order.
Attention! A hose from the intake manifold is connected to the central fitting, and a hose from the carburetor economizer is connected to the side fitting.