So upon start up, my rpm goes right to 2500 and then a minute later it will start fluctuating between 1500 and 2500. This is at idle and foot is not on the gas. Any ideas on what it could be? Possibly IAC valve or intake manifold leak? I don't know a lot about cars.
included video: http://www.youtube.com/watch?v=_5Kc3lL_mfg