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Pontiac
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1990
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Bonneville V6-3800 3.8L
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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
Ignition Timing: Adjustments
This engine uses COMPUTER CONTROLLED COIL IGNITION (C3I) system. The ECM controls
ignition timing
and no provisions for adjustment are provided.