I'm back home from my round trip. So I've drove for around 4300km testing new code. It works very good and stable, haven't noticed any issues. After first calibration it shows FE with amazing accuracy. Error on second tank was around 0.1%
Anyway I have some thoughts on new code.
One thing would be good - L/hr display or changing display from L/100km to L/hr during stops.
Graphs are nifty but not very useful.
I want to try to change code a bit to read engine's temp instead of pressures.
Overall I like new code very much. Great job t_vago! Thanks again