question about connecting a wideband
 

i have a s4 tII 2.1 ecu and i was wondering when you connect a 0-5v output to the ecu is the ecu able to actually use this input or is it just for datalogging purposes? Thanks

Its just for read out or data logging.

oh ok a nice update would be if the ecu used this. I guess i need to put in a 3-wire heated o2.

Almost every wideband has a narrowband output that can be connected to the ECU's o2 sensor input.

i know but i guess i wanted my cake and to eat it too