Problem after fuel tank replaced

[trifit1]

Replaced tank on 96 SE, pump and gauge seemed to go in nice. Now not getting and fuel pressure, car wont start. Fuel pump will run if I put power to terminal and car will start and run fine for 10-15sec them dies. The gauge is now pegged on full and wont move. Switched relays and no help. Car ran fine before tank switch so I assume I did something wrong when installing the pump/sender in new tank. There appear to be 4 wires on the connector of which 2 look like grounds. Have 8.5 v to 1 set and nothing to the other set. Any help with this screw up? I dont want to drop the tank again. Thanks