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What does the Mazda B2200 vacuum control valve do?

The Mazda B2200 vacuum control valve is responsible for controlling the vacuum supply to the various vacuum-operated devices in the vehicle, including the air conditioning, heating, and ventilation systems, as well as the cruise control and emissions control systems. The vacuum control valve is located on the intake manifold of the engine and is actuated by a vacuum signal from the engine's throttle body. When the engine is running, the vacuum control valve opens and allows vacuum to flow to the various devices that require it. When the engine is turned off, the vacuum control valve closes and prevents vacuum from being drawn from the intake manifold. This helps to prevent the engine from stalling.
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