I'm pretty sure that lower priced O2 sensors like the Bosch LSU4.2 5-wire, wide-band O2 sensor will not work with the DIY-WB kit. But I'd like to get some confirmation on this. Just trying to get by with a bit less expense on putting all the hardware/software in place to do the tuning thing.

 

This is basically true. There are people that have modified (reduced) the heater voltage and used the Bosch sensor with the DIY-WB. However, the calibration is off.

It works but is not recommended.

RBob.