I did both of these test and got the right readings, even went and changed my sending unit and tested that and its still good. I left the sending unit plugged it and moved the floater manually and it works on the gauge but as soon as I plug it in while its in the tank it goes to full. Im lost on what it could be. Anyone has a good idea on what i can do? By the way, my temp gauge was misleading, said I was over heating but never did, now the temp gauge works like normal. I still checked the cluster and it works fine, clueless

 

Anyone?