I am confused regarding the use of the VE tables in closed loop. As I understand, in closed loop the O2 sensors will control the fuelling based on the readings of the O2 sensors.
So when running in closed loop with lambda being targeted and not at WOT, is the part throttle VE table used at all?
If the VE table is never used in closed loop, what is the purpose of logging LTFT and STFT for adjusting specifically the part throttle VE table? Is it a waste of effort to log the fuel trims?
I understand that in open loop then the VE tables are used.
Please help me out here.