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Home >> Saturn >> 1992 >> SC Standard >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Adjustments - 4-Cylinder >> Idle Speed & Mixture >> Idle Speed >> Notes

Idle Speed: Notes

NOTE: Idle speed is controlled by ECM. Slight fluctuations in idle speed are considered normal. Start and run engine for at least 7 minutes to re-establish ECM control of idle.
NOTE: Incorrect idle speeds are normally caused by dirty throttle plate or vacuum leaks. Ensure all vacuum components are functioning properly.
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