I guess this guestion for veterans seems stupid and should be in noob questions but i will still ask.

Car: 1.8t ME7.5
Open air intake
TT Bam injectors ( TVUB, TEMIN, TEMINVA, KRKTE, FKKVS ) copied from BAM.
The problem : When i request lambda 0.85, there is no problem, my WOT afr and req match, but when i req for exmaple 0.80 actual afr is leaner then my req.
I tried to add fuel trough KFKHFM and it worked, but load was off. When i set all 1 for KFKHFM, the wot AFR is perfect, but load is kinda off.
My first tought was that i need to tweak my tvub and krkte and I set FKKVS to 1 and started logging FT, but they are within 2-4% .
I think there is no hardware problem because when i logged with BTS lambda went to 0.71.
I will add loggs tomorrow. Any suggestions ?
My Audi 2860rs i tuned by setting KFKHFM to 1 and fine tuning FKKVS, but load was off. This time I would like to try different approach.
I found great guide from prj how to tweak fueling with new injectors, but before i waste loads of time, i would like to hear your opinions.
Edit: Req boost and acutal boost also match

1st of all you should decide what exactly causing this
thats not a new injectors - you have all the factory data at the same ECU defined, you dont need any calibration

log fr_w, ti_b1, msdk and so on, get a fuel pressure test at wot to locale an issue


if its fueling - FKKVS / FRLFSDP
if its load issue - KFKHFM (but in case of stock maf you should not touch that)