High idle on 1997 sc400

Asked by Jul 31, 2012 at 09:14 AM about the 1997 Lexus SC 400 Base

Question type: Maintenance & Repair

Car idles very high and it erratic, 900 to 1400 rpm s......causes ?

1 Answer

3,520

Check for vacuum leaks, misfires, and clean your idle control valve and egr valve. Its impossible to say exactly what it is without more info.

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