I recently got my ATS and the 1st night I had it going home the service engine light flashed and then stayed on. I brought it in to get looked at, and they code was a cold start mid fire. The dealer did a compression check on the engine and everything checked out. On the way home today, the light again flashed intermittently for about 15 seconds. Any one else have this issue? I'm a little upset a brand new car already has potential engine problems. Could it be a PCM issue?