I got an "Increased Emissions" notice on my HUD and a "Service Engine Soon" light on the dash board. I have filled the tank since then and the light is still on, I have an appointment next week at the dealer so we'll see if they find anything.

 

Well, I think mine was an easy one. I had the same problem, I took my car to my friend's repair shop, he hooked it up to his scanner and got a reading, I don't remember exactly but it said something about Intake and "Mass air flow". All he did is he took the Mass Air Flow out and cleaned it with some Carbon Cleaner, put it back and cleared the code. I've been driving my car for over a week and the light hasn't came back on yet.

I'm usally not that lucky but I'll keep my fingers crossed.