I had the same problem. Chrysler first said that there were only 4 parts that could cause this problem. The dealer replaced all 4. I don't remember what they were. With That I still had the problem. I would get the check engine light then it would go out in a couple of days. The code was always the same (P0410). I went back to the dealer when the Chrysler tech. rep. was there. He said to replace a relay module (I don't know where it is located in the car). I do know it is under the hood. It got replaced and I haven't seen the check engine light since. Good luck. I was told that the relay module is a common problem.