Fuel Gauge Problem

If you are not getting good reading from the sender, it may just simply be bad. To make this as simple as possible, take readings from the insulated terminal to the flange of the sender.

You can get an idea of how the gauge is doing by imitatiing the old shop manual gauge tester, which was simply three resistors and a switch.

L = 73.7 Ohms (empty)
M = 23.0 Ohms (1/2)
H = 10.2 Ohms (full)