Anyone still having issues, even with desoot mode disabled?
I always seem to have a lean spike between 2500rpm - 3000rpm and need to fudge my MAF and VVE to improve it.
Usually E67 LSA engines with large cam and injectors. WOT fuel will be 11 - 11.5 and lean spike goes to 13.0.
Played with transients as well with no notable improvement.