Operation CHARM
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Buick
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1988
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Regal V6-173 2.8L
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Repair and Diagnosis
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Relays and Modules
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Relays and Modules - Powertrain Management
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Relays and Modules - Computers and Control Systems
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Engine Control Module
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Description and Operation
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Modes of Operation
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Acceleration Mode
Acceleration Mode
OPERATION
In the Acceleration Mode, the
Electronic Control Module
(ECM)
senses rapid change in throttle position and manifold pressure or air flow and provides a corresponding amount of added fuel.