Yes, I have had that exact problem with my 2004 coupe. After 3 or 4 trips to the dealer they finally found an unknown error code in the computer. They then traced the problem to some sort of vacuum leak in the throttle body. According to the work order they replaced the "mass airflow sensor" and a couple of seals. I'm still not absolutely certain the problem is solved. I drive the car very little, only about 7000 miles in 21 months.