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Home >> Chevrolet >> 2001 >> Impala V6-3.8L VIN K >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data, Normal Values and Definitions >> Scan Tool Data Definitions - Powertrain Systems >> BARO
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BARO

The scan tool range is 10-105 kPa/0-5 volts. The barometric pressure reading is determined from the MAP sensor signal monitored during key up and Wide Open Throttle (WOT) conditions. Barometric pressure is used to adjust fuel delivery and spark advance to compensate for altitude changes.
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