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Pontiac
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1988
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6000 V6-191 3.1L
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Ignition Timing
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Adjustments
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W/Distributorless Ignition System (DIS)
W/Distributorless Ignition System (DIS)
These engines use a DISTRIBUTORLESS DIRECT IGNITION SYSTEM. The ECM controls
ignition timing
and no provision for adjustment is provided.