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Home >> Chevrolet >> 1997 >> Malibu LS >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine System Testing & Engine Component Testing - 3.1L >> Ignition System >> Timing Control Systems >> Ignition Control (IC) Timing Advance System
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Ignition Control (IC) Timing Advance System

A malfunction in the IC circuit (formerly referred to as the EST circuit) will cause PCM to turn on Malfunction Indicator Light (MIL) and confirm fault by setting a related diagnostic trouble code. Refer to the TESTS W/CODES - 3.1L article.

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