mk4 mfi xr3i fuel pump / relay problem solved cheers!
got my replacement fuel pump as mine was dead
now bear in mind this car has been stood for 9 years!
we drained some of the old stale fuel out and put fresh in, it took a while for the pump to turn off so had a look under neath and had a cpl leaks which we sorted all of them!
ok the pump wont turn off at all it just keeps on running any ideas?
tried to start it nada
give it a few mins checked for spark - real strong
checked fuel at the inlet for the plenum thingy - fuel under pressure - good
turned over again and good fired woohoo
had to feather the throttle to keep it going and every time i let it tick over it stalled got it going for a cpl mins in the end good
little missfiire so i thought i would turn it off and clean the plugs 1 and 2 were sooty 3 lovely light brown and 4 sooty - wire brushed and replaced
then absolutely nothing!
the pump still runs continuously using a new purple relay holder and the lucas relay
my gut tells me that if the pump runs continuously it mus be delivering fuel somewhere or sucking air somewhere all the high pressure hoses down of the pump are pressurised!
could the injectors be stuck open?
cheers for help dave!
sorry about the length of the post lol
Last edited by wallopadonkey; 12-11-2010 at 06:37 PM.
Reason: ammended title to get help