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Home >> Pontiac >> 1990 >> Sunbird SE, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Adjustments - 4-CYL >> Ignition Timing >> Notes

Ignition Timing: Notes

NOTE: Procedures for timing adjustment are for engines equipped with HEI-EST distributors only. All other models are equipped with either C(3)I, DIS or IDI ignition system. Timing on these systems is not adjustable