The car starts fine normally just takes a little time to actually fire, just cranks over for a bit. The other week it wouldn't fire. I changed the plugs as they looked old, and checked for a spark, they all worked but still no start. I pulled the fuel pump fuse out and ran it dry incase it had flooded and then put it back in but still no start. Went back to the car about an hour later and it started on the button with the pedal on the floor. This morning it wont start again jus cranks over (still has spark and fuel). The cold start is connected, could this be causing the problem by putting too much petrol in? Bcos it stinks out of the exhaust when it doesn't fire and i think the car over fuels when its running.