Bill I see your reasoning.
We should not be trying to 'measuring" anything to test the gas gauge. That is a commentary remark.
The problem with some instructions, for "continuity or resistance testing", is right in the middle of the explanation it starts to talk about "short circuit". What I am talking is ONE wire. Checking it's ends to see if they are connected. We can't check ONE wire for a short by touching both ends with the probes. The instruction mixes in checking a circuit and several wires, if they show continuity to each other, it's a "short". If a wire shows continuity to ground, it's a short. We are not talking that. I am not talking testing a discrete component like a diode and we are not really checking a GAUGE. Most of us use continuity to check ONE wire some place on an old truck. To see if it gets where it is supposed to go. That's it. We are supposed to use the buzzer for that. The instructions throw in zero, OL, L, 1 and talk open, short, out of range, too small to measure and good bye.
You can "check" any old analog electrical gauge that uses resistance as input, using a gas tank sender. Temp gauge, oil pressure gauge, gas......or of course use a rheostat.
