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Home >> Honda >> 2001 >> Prelude Base, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Master Power Vacuum Sensor
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Master Power Vacuum Sensor

The master power vacuum sensor converts brake booster vacuum into an electrical signal input to PCM. During Auto-Stop operation, Integrated Motor Assist system monitors power brake vacuum reserve. If vacuum reserve is below a specified level and transaxle is in Neutral, engine will restart to replenish vacuum supply for safe operation of the brake system.

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