I believe that there is no such resistor because at bosch document they are at "proposal" section not "necessary".

I have tryed fiew different condition lambda sensors and the calibration values are the same on each . I have got: UA_Optimal : 305 UR_Optimal : 177 Each sensor shows different O2 content at air and at exhaust pipe in my oil burner. I'm operating at 3-4% O2 content. Is it normal ? I have bought bran...

Thank you! The calibration readings are 176-177. Fiew firsts readings of o2 content after device reset are 20,58 ; 20,20 ; 20,00; 19,60 ; 19,80. and then is oscilating around 20%. My goal is to measure O2 content 1-5% . Will it be acurate enough for this range of o2 content? I have another question ...

Hi I'm new here. I've made my own shield based on bylund information. It works but have some question- in open air a have a 20% content of oxygen. Most of resistors from schematic was 0.1% of precysion (not sure how to explain this value. I hope U anderstand). Is this normal? I have bosch sensor but...