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Home >> Chevrolet >> 2003 >> Impala LS >> Repair and Diagnosis >> Engine Performance >> Engine Control System - On-Vehicle Adjustments >> Idle Speed & Mixture >> Idle Speed (4-Cylinder) >> 2.2L (Alero, Cavalier, Grand Am, Ion & Sunfire), & 2.4L (Cavalier & Sunfire)

2.2L (Alero, Cavalier, Grand Am, Ion & Sunfire), & 2.4L (Cavalier & Sunfire)

NOTE: Information for bi-fuel Cavalier is not available.

Turn ignition ON with engine OFF. Turn ignition OFF for 10 seconds. Start engine and check for proper idle operation. PCM will now properly control idle speed.

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