Ok. Let’s figure this one out…bought my 04 366 end of last year. Starboard Fuel gauge worked but read lower that port even after fill up. This year wasn’t reading at all. Dug into the engine bay and found the ground lead not attached to anything…here’s the puzzler…the small screw at the back where I assume it’s supposed to connect, has no terminal/connector attached to it. Absolutely zero place for the female spade ground wire to connect. How the sh## did it ever work at all? I put a ring terminal on the ground and secured with that small screw and it’s back to working but still reading lower than port. In fact that whole multi gauge (oil press, temp, volts, fuel) reads low and I’ve checked the ground on the back of gauge so I’m open to suggestions on that one too.