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Q: Idle Control System Malf - Additional information please on 2003 Toyota Highlander

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Just out of curiosity, how (if at all) does the throttle body motor tie into this? I recently had it replaced when the car did not want to stay running at all. That did the trick, but now that I am again having a problem ( two months later) I wonder if the part that they used is in some way defective and causing me this additional headache. Your assistance is appreciated.
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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Your engine uses an idle air control motor (IAC) it is just under the rear air induction duct just at the throttle butterfly housing. On several Toyota and Lexus products these IAC devices "gum up" with carbon, many people just replace the valve I have taken many of them apart and cleaned them with Chemtool. If the IAC fails it normally causes the engine to stall on a cold start in the morning or stall when approaching a stop sign with electrical loads on. it normally doesn't make an engine not run. A failed air flow meter will make a car not run but these usually set a Check Engine light for random misfire or result in sluggish performance. Has your car set a Check Engine Light?
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