been out pissing about with it tonight...

getting 5.39V to the sender, is that right? thought it should be 12v lol

anyway, i took the sender out the tank, and upon doing the custom callibration by just turngin it upside down to indicate full, it was still reading empty...

so got the float to move halfway, and low and behold the guage went up a bit...

so empty is actually full, and full is empty and yes, it does have a full tank of BP's finest!

tried checking all the wiring etc and couldnt see anything amis... but now the guage doesnt light up when you turn the lights on.

id had enough by that point so came in...

any ideas on the inverted reading thing? is it just a case of swapping the pos and neg wires around? or wont that work?