Thursday, August 26, 2021

Project-Zero: Fuel Level Wonkiness

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.

GBS Zero Fuel Level Sender - EveryCircuit

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