GM I have a 2000 3.8 convertible with a no fuel condition after coming out of 6 months storage. Fired right up to bring it into the daylight, ran for about 15 minutes flawlessly before i shut it down. few hrs later good crank, no fuel. No fuel exited schrader valve when depressed. Tank is FULL of fuel with Seafoam fuel treatment added last fall. Connector at rear bumper, there is 12v on pin located on "top row of 4 male pins" 2nd from the left when looking at the pins. when my helper pulled/replaced the F.P fuse under the hood, the power to this pin mirrored the fuse position. as in, fuse out no voltage, fuse in 12v. i applied 12v power to the pump side female connector which should be second from the right when looking at the pins. and grounded the second pin from the left with no resulting pump operation. Since I have 12v at the body side of the connector and that ground pin appears to be good based on test light function when probing both of those 2 inside pins together the problem is in the pump harness or the pump itself correct? or was i using the wrong pin for F.P ground in that connector?