You may be satisfied with little, but not everyone is.
LOL
Or maybe what's more likely, you don't have any clue what you're talking about here calibration wise
IPW = rk_w * Factor + TVUB. RL and through it rk_w are already temperature compensated and target lambda is baked into rk_w. TVUB is nice to have.
For the factor you use a map with same axis as FKKVS for simplicity of tuning.
It can be literally done with 2 maps and the result will be exactly the same as doing it with 20 maps. Especially in this case, where injection is needed only on WOT, as using DI everywhere else is preferable.
More is not always better. It's not exactly voodoo magic, the hardest part for everyone will be to find how to control PWM, but actually it's not so hard if you look at the OEM routines.
I don't get the obsession with this stuff on a pretty much dead platform though...
PWM is maybe even the wrong word for it, all you need is to turn the input on and off in a crank-synchronous interrupt.
Did not look at this on MED9, on ME7 it was possible to do a single fire with a certain duration via configuring the registers.
I did this for WMI control a long time ago, I don't see the big problem about it, I certainly was not as up to speed back then.
http://nefariousmotorsports.com/forum/index.php?topic=19238.0title= - this little project with source code reconfigures intake flap to control N75...