In sds/das/xentry can you adjust or calibrate o2
I gave my setup away with my old Benz and trying to hunt a O2 issue with my car.
When replacing the oxygen sensors, no calibration is needed, so I don't think one is provided to be done.
This car is acting weird I am playing a sensor game with it and I can never get it happy with all 4 sensors.
I will get post cat to rich.then change rear sensor and that code leaves but then flags rear O2 below cat threshold etc and it's driving me nuts








