Rob Wray from mp3Car takes a look at a self calibrating fuel level sensor. It uses a new technology called variable capacitance to measure the fuel level. Because this reads via voltage, it should be able to integrate with a fusion brain.
So you didn't really have him elaborate on self calibrating. Does this mean that perhaps 25% will ACTUALLY mean 25%? For example, in my car, I get 250 miles from full to half, then 100 miles from half to empty. I think that is the big issue with many stock fuel sending units, and "calibrating" seems like it would be something that could fix that?
"stop with the REINSTALLS, what do you think we got some lame-o installer!!!" - mitchjs
RevFE My Shop
Different fuels....... its really nothing groundbreaking just something no one has come up with yet - variable capacitance is at least 10 years old commonly used with temperature sensing or other similar environmental sensors. I was pretty sure it was already used in a few modern cars but I could be off about that.
Its not as simple as connecting directly to your fusion brain unless it has built in conversion circuitry. Most likely you will need to setup a resistor bridge to measure capacitance.