Just a quick question, does the walbro 255 fuel pump come with a new sender unit or do you need to use the oem one. One of the many electrical niggles I have is my fuel gauge is sitting rock bottom in the red and the light is on but the tank is brimmed. I think when I had a few jack plugs plugged in wrong it's blown the sender unit as I don't think the float is stuck. My speedo also doesn't work is it possible the two are relate issues?