My car is doing exactly the same thing and i have not found the answer have changed the relay done all the checks,including fuel filter except the plugs. My car just seemed to die having sprayed the cleaner in the housing,i don't know if i overdid this and it has now clogged it up. Is there a way to clean with some sort of solvent or just neat petrol.if the fuel pump is blocked how can i fix that,you see i to have the car just turning over and when i do this a few times the relay is physically warm to the touch does this mean the pump is working? any help would be great. many thanks. ;)