I am running a wideband o2 sensor on my 1.8t AEB with M5.92.  The wideband  emulates narrowband too so I am feeding this into the ecu with the wideband installed in place of the narrowband in front of the cat.  I have to leave the narrow band connected because I get a fault code for the heater circuit if I remove it.  I think some people run a resistor in place of o2 sensor to fool the ecu. 

Id like to remove the the narrow band all together so I tried nulling CDHSV (codewort Heizerdiagnose vor Kat im) but this did not work and got a hardware fault.  Must be missing a concept or some other places I need to modify.

Stock bin and map pack are attached.

I would very much appreciate any help and pointers for what other maps I need to change to disable the heater circuit for the front sensor.

Thanks for whatever info you can share.