[97blazzzerls]

hey guys help me out here ive got a 97 blazer ls 4door and i have no power to the fuel pump/sendingunit and my fuel gauge lays wayyy over full when i turn the key on ive changed the sending unit and ive changed the ignition switch but still no power i tryed primeing with a 12v fused from batt to primer cable by firewall and still nothing so i switched the relay around with another one and still nothing please help