Hello i have big problem and i need help,so car just dies while driving(gas pedal does not respond) sometimes it dies while at idle sometimes at driving,there is no check engine or any code that comes up at diagnostic,car starts fine and drives fine then suddenly my car shuts down,no errors on diagnostic no check engine light, when i want to start my car sometimes it starts up again normal and sometimes its just cranking but not starting,if it starts up then after 1-2 miles it just dies again sometimes i can drive 50 miles and nothing sometimes i cant make 2 miles and it dies, changed the crankshaft and camshaft sensor,i can hear fuel pump working everytime i turn the key on,checked the fuse box everything ok, dont know what is happening with the car,sometimes when it dies and i want to start it again it just cranks but no start and sometimes it turns back on normal,i never have experienced this and really dont know what to do please help car is abarth grande punto t jet 155 hp year 2009