Operation CHARM
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Pontiac
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1989
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Grand AM L4-121 2.0L
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Engine
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Tune-up and Engine Performance Checks
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Idle Speed
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Adjustments
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Minimum Air Rate - Fuel Injection Only
Minimum Air Rate - Fuel Injection Only
The ECM controls the minimum
idle speed
on this vehicle, and no provisions for adjustment are provided.