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Home >> Chevrolet >> 1988 >> Camaro Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - Direct >> Operation >> Electronic Spark Timing (Est)

Electronic Spark Timing (Est)

The EST system uses the same EST-to-ECM wiring circuits as distributor type ignition systems use. Operation of each circuit is described in the following paragraphs.