Went to start my car and it was just turning over, it was absolutely fine the day before. It sounded like no fuel even though gauge showed just under a half tank. Knowing how iffy the gauges are I put more in but no success, I then checked the relay and it's fine, I then removed fuel pipe from injector rail and nothing is coming through. I've never had any fuel problems before the car has always started first time every time, any ideas as to what this could be.