fuel to pump yes , eletric stop
try the stop unit , make shure it is open,
take wire off,,, with the ign on touch the wire on and off to hear if it is working , you should here a click
if not remove the unit , take out the small piston , replace unit , (should be small spring and piston ,note how it is fitted)you will have to stall it , replace the unit ,
harry, August 2009