[Pushit2.0]

If it was a short to ground it should burn a fuse or melt a wire. I would use a volt meter, go to walmart, harber freight, northern, radio shack, barrow, what ever. Test your voltage in, IE stock fuel pump power wire. Note the 3/S has a High/Low voltage regulator for the stock fuel pump power. Then make sure you have 0 Ohms to ground from the fuel pump ground terminal to the chassis or battery negative. Also check for ohms on the positive terminal of the fuel pump to ground, it should be open or no connection, all of this with the fuel pump sending unit plugged into the chassis harness. Good luck.

~John