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Home >> GMC >> 2000 >> Envoy 4WD V6-4.3L VIN W >> 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 >> IAT
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IAT

Range -40-151°C (-40-303°F): The VCM converts the signal voltage of the Intake Air Temperature (IAT) sensor into degrees. The VCM uses the intake air temperature in order to adjust fuel delivery and spark timing according to the incoming air temperature.
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