My 99 v6 has been sitting in the driveway for a while so..... While I was changing the fuel filter I decided to try to dump the remaining 1/4 tank of old gas as well. I removed the fuel filter and ran a hose from the fuel line into a gas can. Then I tried to power the Fuel Pump via the round connector, located rear center gas tank (C463), using a battery charger to inject 12 volts to the RD/BK and BN/PK wires. The fuel pump started humming but no gas. Any ideas?