check engine light ( havent pulled codes yet) strange

[Kabuki_notch]

here's a strange one my car runs mint finally, when i drive it for more than 20 mins or so and I get ready to park it throw it in park and the check engine light comes on and the car idles funny anyone have a clue what this might be? or what I should check first? I have a hunch its the IAC but would I need to replace this pig or what? thanks in advance

-Rob

 

[TC93]

Try cleaning the IAC first... Take it off and shoot some carb cleaner in the 2 holes.. See if that works before replacing it..