What was found
BEFORE TAKEOFF PILOT NOTED 81 GALLONS OF FUEL. SHORTLY AFTER TAKEOFF PILOT NOTICED FUEL 0. PILOT DECLARED A PRECAUTIONARY LANDING. TROUBLE SHOT VEMD SYS TO INCLUDE THE CONNECTIONS FOR MISSING OR BENT PINS. REMOVED BELLY PANEL & VISUALLY CHECKED ALL CONNECTIONS. CHECKED THE FUEL GAUGE ELEC CONNECTOR & FOUND THAT IT WAS NOT SEATED PROPERLY. CHECKED FOR MISSING OR BENT PINS & THEN TIGHTENED CONNECTOR. OPERATIONS CHECKED NORMAL.