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Home >> Mercury >> 1993 >> Tracer LTS, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation - EEC >> Computerized Engine Controls >> Input Devices >> Barometric Pressure (BARO) Sensor
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Barometric Pressure (BARO) Sensor

BARO measures barometric pressure of atmosphere. The PCM will adjust air/fuel ratio, A/C cutoff, idle speed, and purge control to compensate for changing pressure. On 1.8L and 2.5L, sensor is located inside the PCM and cannot be serviced separately.

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