Right my 91 8v gti has a problem at first when I turned on my ignition my fuel pump relay would either click very rapidly or the fuel pump just wouldn't stop priming and the car wouldn't start on either, after fiddling about it finally started and it drives, it sounds a bit rough on idle and when I put my foot down it just won't go like it should and when I hit 5000rpm it takes aggeesssss to move to 6000. Any ideas ?