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Home >> Mazda >> 1994 >> Protege Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Barometric Pressure (BARO) Sensor
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Barometric Pressure (BARO) Sensor

BARO sensor measures barometric pressure of atmosphere. Variations in atmospheric pressure (changes in altitude) modify an electrical signal monitored by PCM.