So today I went out and started the car. it did what it normally does, which is rev up a little bit then drop back down to normal. This time though, the rpm's dropped off further and the car died. It did this a couple times, then I started it again and managed to keep it running. Drove to the store and had no issues with it stalling on me, and when i came out of the store, it started and ran just fine. Anyone have any clues as to what it might be?

 

I IAC may have been stuck and the heat of the engine running may have loosened it up. Or the MAF is starting to go on you.