Bad gas gauge?

I posted the correct resistances in the other thread, but here they are again

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

That is almost exactly what you should read, but of course it does not mean you HAVE 1/2 tank.

I really don't care how accurate the darn thing is, so long as I know where EMPTY is. About the only way I know how to do that is to------

Carry a spare can with a little fuel, SAFELY

Run the tank down until you think you are about out...........

Then get the car home and level, and drain it (easy if you have an electric pump) until it spits, IE "we're out"

THEN see what the gauge reads, and if not MT, measure the sender resistance again and see what you get. See if that resistance matches the gauge MT figure of around 74 ohms or so

Then, if the sender is off, you have a choice of trying to find a better one, or bending the sender arm so that it gives you that figure when MT.

Some guys have been able to "fudge" the MT figure, if the resistance is too low, by adding a series resistor to make it so, IE

Let's say the sender at "actual" MT does not have enough resistance. MEASURE it, then buy the closest amount you can at Radio shack to add up to about 73-75 ohms. If you can't get the exact figure, there is some "fudge" there. It won't likely be accurate near full.

The general opinion around the www is that most repop senders seem to be inaccurate.