I change my gas sending unit n my gas hand is still not working. What's nexttodo on 2004 Pontiac Grand Prix GTP

this is my first time having this problme. help me out trid wasteing money on gas

Asked by for the 2004 Pontiac Grand Prix GTP
You replaced the tank unit and did not test it while tank was removed?? That was the time to check it! A GOOD scanner can sweep test dash cluster (move gauges up and down) Also could be a wire or connection problem.