I have a 2012 chevy cruze with a 1.4 liter engine and every time I put gas into it, when I start the car, the engine cranks but will not start immediately. Sometimes after starting the car, it dies out and I have to start the car again. Sometime after driving it for a out 15 minutes, when I come to a stop, my car would misfire and try to lurge forward. Only after I give it some gas will the engine operate normally. Need some help please.