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Pontiac
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1992
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J2000/Sunbird L4-121 2.0L
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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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Timing Marks and Indicators
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Locations
Timing Marks and Indicators: Locations
The ECM controls ignition timing therefore no provisions for adjustment are required. No timing marks are provided on this engine.