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.

by in Brooklyn, NY on May 20, 2013
1 answer
ANSWER by on May 20, 2013
CK FOR VACCUM LEAKS OR IDLE AIR CONTROL ISSUES