My first try at calibrating the fuel level sender in my car did not go well.
My calibration process kind of sucked, I can do much better. I spilled fuel, it wasn't a clean way to do thing. The next go of it I'll actually have a 1 gallon fuel jug and no-slosh funnel.
Not really happy with the fuel level sender I was gifted by a friend, I ordered a new sender/gauge kit from ETB Instruments in the UK. It gives me a known good starting point.
The new sensor should read:
- 260 ohms, empty ( 0.631v w/ 1.8K ohm pull-up )
- 20 ohms, full ( 0.055v w/ 1.8K ohm pull-up )
Which the simulations on EveryCircuit confirm.