Fuel level??

I recently had my gas tank out and everything removed to have my sump installed. After I got everything sealed up, the level doesn't read. My sending unit is only about a year old and the gauge works when grounded. I also have a proper ground on the sending unit when checking it to chassis. Is there anything I could have screwed up on reinstall? I did have to squeeze the unit together to get it through the opening, could I have broken something?
 
  • Sponsors (?)