Auto Meter Fuel Level Gauge Install

I filled my tank and then drained it with a multimeter attached to the sender. Full is 13ohms, empty is 50ohms. I was hoping to get the programmable gauge cheap because the next closest is '88 and below Ford's 10ohm full, 73ohm empty. Full should be really close, not sure about empty. As long as I know where both really are, that's fine. I know my gas mileage has suffered and looking into the tank to see how much fuel I have doesn't give me that much of an idea unless it's really empty or really full.

I got my fuel gauge in from Summit Racing.





It works pretty well. I had a tiny bit of fuel in the tank when I first checked it and it was on the E mark. I filled the tank with the key on and it seemed pretty linear. A full tank is just over full on the gauge, almost completely pegged. At least that was easy.

I used connections from the stock gauge cluster that was removed. It comes on with ignition power and the lights should operate with the switch. Here are the wire colors from the stock cluster's wiring incase anyone else tries soemthing similar. Once again, this is an 88 and earlier Ford fuel level gauge from Auto Meter with a 73-10ohm range (E-F).

Black - Ground
Red/White - Ignition Switched Power
Yellow - Illumination
White/Blue - Fuel Level Sender