Safc ii sr

[ultamaflow]

I have followed other setup from other members on running a stock sr with z32 maf. I reinitiate the apexi safc II and now the car acts up. under car select I dialed the Cyl from 4 to 2 and run's perfect. Swapped out ecu with another ecu since i have like 4 ecu just to c if it made any changes and same thing- could I have a bad maf? Was running perfect b4 in setting with 4cyl - kinda sputters between 1500-2000 and tends to want to stall after a medium rev but once more in 2cyl run's like a champ? Can having it in this setting damage the motor? Can any1 give me guidance

The manual tells me this :

Select Sensor Type and set the number of cylinders
You can select it in a range of 1 to 16 cylinders

Rotary engine car : Number of rotors x2
Mazda Atenza (GG#S/P, GY #W) : 2
Demio(DY#W) : 1
Toyota V8 engine car : 4
PASSO (KGC10) : 1
Nissan Fairlady Z (Z33) : 1
SKYLINE (CPV35) : 1
Daihatsu Boon(M3OOS) : 1