Remember, chances are you won't see a vacuum leak. Often times (VERY CAREFULLY) people will use carb cleaner and spray it on the vacuum hoses. If there is a leak, the RPM's will increase. Also, you can check vacuum by using a vacuum gauge to determine if it is low. As far as the IAC, I would suggest removing it and having someone cycle the key from off to on to see if the pintel is moving. If it isn't, check to see if there is power to the harness.
Wednesday, September 9th, 2015 AT 6:08 PM