This morning I went to start my car and is was turning over but not firing. Possibly thinking fuel pump or CPS but the weird thing is I have no codes and the car started fine after trying a few times and did so the rest of the day uneventful. Is this a one time fluke like a piece of debris in an injector or could this be something bigger? I also have a very rough idle once a week or so where it feels like a severe miss or something but no codes!!:bangheadlease help!!