turns over but won't start.fuel pump new and humming on 2003 Chevrolet Cavalier

just changed fuel pump and it started right up ran good.turned off now won't start.fuel pump is humming

Asked by for the 2003 Chevrolet Cavalier
did you buy a cheaper pump? did you clip the wires on until the connector locked?
1 more answer
Check the fuel pressure, and make sure it's not flooded.