First my fuel pump wasn't priming when the key was turned but i DID jump the relay with a cotter pin and the pump turned on and as i cranked the car wile the pin was in priming the pump, it didnt turn on so i took a plug out and tested for spark and theres no spark my mechanic says it coud be a million diff things but he says one thing is causing both of the problems cuz i got a new relay and it doesnt prime the pump but when i jump it it does, i need HELP quickly and the first couple forums were like mine so i think this probably happens alot with these old school stang.