Dean then soldered the fuel pump wires and put some heat-shrink over the connection. In addition to the in-tank wiring we also replaced the external wiring for the vehicle’s sending unit and fuel pump with a service connection weather pack, should we ever need to drop the tank down again. After the installation was complete, the Buick instantly came back to life. We’ll be addressing the rest of the wiring and a few other issues soon, in order to finally get this car on the road – and the track.