Operation CHARM
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Lincoln Truck
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2000
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Navigator 4WD V8-5.4L DOHC VIN A
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Sensors and Switches - Computers and Control Systems
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Air Temperature Sensor ( Ambient / Intake )
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Description and Operation
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General
General
The IAT sensor:
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sends the PCM a signal indicating the temperature of the air entering the engine.
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resistance decreases as temperature increases.