I have been trying to recalibrate my fuel gauge. It is very non linear. I have read that calibration errors are cumulative. The top ˝ of the tank gets around 220 miles and the bottom half gets more like 180. I know this is a very common complaint.
In any case, I have seen write-up on recalibrating via adaption. The write ups I have seen mention changing the stored value from between 120 and 136 with 120 being the default value. I think this was for MK IV cars.
On my car, when I get to the adaption channel, I see the screen attached. As you can see the value is 0.0 in what looks like degrees.
Rather than just try a new value of let’s say .9 degrees. I am hoping someone can explain the adaption values .