Idle Air Control valve.
the little valve can get clogged with oil, dirt, and carbon build up. you can try to clean this by removing it and with carb spray cleaner and an old tooth brush scrub it a bit otherwise a str8 replacement with new gasket. it is located on the throttle body after the throttle plate section. Your local Aut parts store shouldbe able to print out a component diagram or at least be able to show you where it is.
HI" have you check your throttle plate to see if is dirty clean whit brake cleaner or carb cleaner ,IMPORTANT engine off keys in your pocket ... have someone step on gas pedal to keep throttle plate open use a toothbrush to scrub good hope this helps,you can tell if throttle is dirty if idles to low still check see if dirty
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I checked those to replace the sensor still doing same thing
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