Uni-Master

I have my LED gauge all installed, however this has to do with a problem. I did break my speedo and am in the process of getting a new however. I didn't "break" anything else but my fuel gauge shows I have like 150% fuel which before I took it out I had about 3/4. What can I go about doing to find what is wrong with it? I thought maybe the pointer just got loosened up as a result of being taken out. I did blow the fuse to the dash lights could this have caused more problems??