I have a 02Eclipse automatic, and all of sudden yesterday it starts to lose idle and feels like the car is about to shut off when im at a red light,it also when driving doesnt feel like the car is gettin any gas. I took it into the dealership and had them do a tune up, because i thought it might be the spark plugs and so they could check it out, also my check engine light is on,after the tune up the problem was still there, they said it might have something to do with the emissions which is what i think as well, can someone help me out and plz tell me whats really wrong with my car................thx...........mike