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Buick
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1999
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Century V6-3100 3.1L VIN M SFI
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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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Description and Operation
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Fuel Metering Modes of Operation
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Acceleration Mode
Acceleration Mode
The
PCM
provides extra fuel when it detects a rapid increase in throttle position and air flow.