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Oldsmobile
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1998
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Achieva 2.4 T, 4T40E/MN4
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Repair and Diagnosis
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Engine Performance
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Specifications
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Engine Controls - Specifications - 2.4L
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Ignition System
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Ignition Timing
Ignition Timing
NOTE:
All models are equipped with an electronic computer-controlled ignition system. Timing on this system is not adjustable.