Originally Posted by
speedingmofa
There is an option in Nistune to disable the closed loop function, but closed loop is only enabled until around 3500rpm. After that, it's all open loop. It seems there's still something wrong with your map.
Be very careful overfueling, all that fuel is ending up in your sump and thinning your oil. Guess what happens next... knock knock?
Do you have a licensed version of Nistune to be able to make changes to your calibration? If not, i can't see how you're making any changes at all...