Ok here it is..... I am rebuilding my boat again and decided to add a fuel gauge.(small fishing boat with portable tank) I am going to add a volvo fuel sender to it the ohm reading are from 10 to 180. I want to connect it to a faria fuel gauge but when I tested this set up the gauge only moves from full to 7/8 tank. That is the full range of the sender. Not sure what is going on or how to fix this. Any help would be great!