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Home >> Mercury >> 2001 >> Villager Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Manifold Absolute Pressure/Barometric Pressure Sensor & Solenoid

Manifold Absolute Pressure/Barometric Pressure Sensor & Solenoid

This combination Manifold Absolute Pressure/Barometric Pressure (MAP/BARO) sensor alternately senses engine vacuum and ambient air pressure. When solenoid is on, MAP/BARO sensor is sensing Barometric Pressure (BARO). When solenoid is off, MAP/BARO sensor is sensing Manifold Air Pressure (MAP). PCM uses these signals to control EVAP operation.

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