Operation CHARM
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Ford
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2009
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F 150 4WD V8-4.6L VIN W
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Repair and Diagnosis
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Powertrain Management
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Fuel Delivery and Air Induction
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Air Flow Meter/Sensor
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Description and Operation
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MAF Sensor
MAF Sensor
Electronic Engine Controls
The MAF sensor:
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sends the PCM a signal indicating mass airflow rate of air entering the engine.
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sends the PCM a signal indicating the temperature of the air entering the engine.