Mike's Workshop Manuals
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Pontiac
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1990
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Sunbird LE, 2D Convertible, 2.0 M, Standard
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/O Codes
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Intermittent Trouble Shooting
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Symptom Definition
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Notes
Symptom Definition: Notes
"SERVICE ENGINE SOON" light comes on but does not stay on. A stored code may or may not exist.