P1131 AUDI – HO2S21 Inner Resistance Too Large

 

P1131: DIY Repairing Video Tutorial

https://youtu.be/ATs1GONz8Zg

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P1131 AUDI Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light)  

P1131 AUDI Possible Causes

  Faulty HO2S21,HO2S21 harness is open or shorted,HO2S21 circuit poor electrical connection  

P1131 AUDI Description

  HO2S21 Heather Oxygen Sensor Bank 2 Sensor 1