Idle adjustment
3 Answers
Try cleaning the throttle body, filters, and sensors. Clean or replace the idle air control valve. Chances are this will improve idle RPM.
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I just wanted to add, if drive-by-wire throttle, check for applicable trouble codes.
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Try using a tank of premium gas it might clean carbon build up in your engine & drive it on the Freeway for 8-10 miles..
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