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Home >> Chevrolet >> 1998 >> Cavalier LS, 2.4 T >> Repair and Diagnosis >> Engine Performance >> Engine Adjustments - 2.4L >> Idle Speed & Mixture >> Notes
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Idle Speed & Mixture: Notes

NOTE: Idle mixture is controlled by Powertrain Control Module (PCM). Adjustment is not possible.
NOTE: Incorrect idle speeds are normally caused by dirty throttle plate or vacuum leaks. Ensure all vacuum components are functioning properly.