today I removed ABS 60A fuse also and no difference.
However I accidentaly find out that when I turned on aircon than rolling idle improved a lot. I dont understand what can be a problem.
Otherwise in local alfa garage I had throttle body cleaned and valve reset done, software update done, I have changed lambda, cleaned MAF, checked oil vapour separator valve, changed sparkplugs.
Car is driving nicely though, good acceleration, just crazy rolling idle.