When using any type of system using lambda sensors as on ANY ecu,
you must map the car first THEN enable the lambda band control.

This is because the ecu needs something to fall back on
should the sensor fail and also it is a base map that will be
corrected by the ecu using the sensor.
This is true for both narrow and wide band sensor ecu's.

The S8 lambda control default settings should work fine
once you have mapped the car, just enable the feature.
Only should the idle hunt will you need to adjust the
loop time values.

Currently the S8 ONLY supports narrow band lambda BUT
there is a new windows software upgrade which will include
many new features such as WIDE BAND closed loop, ALS,
data logging etc.. (Upgrade free )