Brad's Car Manuals
: A 3rd party mirror of CHARM + LEMON car manuals
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Pontiac
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1985
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J2000/Sunbird L4-112 1.8L
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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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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
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In the Acceleration Mode, the ECM senses rapid change in throttle position and manifold pressure or air flow and provides a corresponding amount of added fuel.