hi, my 99 es300 idles high when it warms up already, about 1500 rpm. on 1999 Lexus ES300

at warm up, it should be around 600 or 700 rpm, when the engine is cold i understand a little higher rpm but not when its warm up already, no trouble codes or check engine light.

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1 answer
CK FOR VACCUM LEAKS OR IDLE AIR CONTROL ISSUES