How do you turn the lamba feed back completely off,
THanks Kev.

You can choose different EGO sensors in the software - I use tuner Studio.

So in the EGO sensor type choose disabled

I would just turn the setting controller authority to 0 in the EGO settings and active above to 10,000rpm.
You could still log the readings but it will not affect the fuel table.
Paul

Tuner studio, basic setting, right at the bottom called EUGO (sp?) control then dissable

as Paulf said, just give the controller 0 authority and it can't alter anything but will continue to read out.