I have a 2013 Chrysler 200 LX 2.4L 4speed automatic. Last summer it occasionally had difficulty starting. One in every few starts it would start rough. Now I've noticed recently it seems like it's going to stall just before coming to a complete stop. It occasionally starts rough now. The MPG is WAYYY low and I'm getting 16 MPG in the city which is brutal. Wondering if these issues are all related.