Originally Posted by
twenglish1
He has switched between trims and wideband so many times, then was talking about turning off the trims with the bi-directional functions, so im not even sure at this point, the one log i applied to a tune for him was in closed loop, but if he disable something with the bi-directional it probably wasn't even right, the follow up log he posted looked like a step in the right direction then not sure what was done after when he was going on about the VE not looking right, i've tried my best to help, and explain how this all works with the assumption that he has done research on the basics of logging, plotting the charts and applying to the tune and the basics of how the PCM operates. It definitely can get confusing and is a huge learning curve. Also going to recommend hiring a pro at this point, as stated by others either one of the pros here or find someone good local