I've had this issue for over a year now. I keep searching the forums if there's a solution. I got the problem after a issue with a timing sprocket failed. Dealer fixed that but couldn't find what the idle issue was from. Changed all the parts they asked coil pack, spark plug, timing sensors. Nothing fixed it. The car has been driving fine, I can reset the code and it will idle fine for a few minutes then the code will come back and idle high again.
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