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Hello guys, this is my first post on the RS4 forum. I am getting an oxygen sensor fault code (P0141 and P2196). Couple of questions:
Bank 1 - is that the passenger side?
Sensor 2 - is that the downstream sensor and sensor 1 is the upstream?
There are 4 O2 sensors on this engine, are they all critical? I also have a 2003 Maserati, it also has 4 sensors, the upstream are important, the downstream are not
Engine is running fine, other than the pictogram on the dash advising there is a code I cannot tell of any problem. Thank you
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Oxigen sensor code help
