P0161 P0160 Fault Codes on B7 s4

[eslatts11]

Hi all,

I just recently had these fault codes on my car about a month ago:

P0161 - Oxygen O2 Sensor Circuit Low Voltage (Bank 2, Sensor 2)

P0160 - 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)


Took it to my local mechanic and they replaced the bank 2 sensor 2 with a new one. A week after they did the replacement - I am receiving the same fault codes.

So I'm guessing this is a connectivity issue with a short or fault in the wiring. Has anyone else had this same problem?

[Lucca M]

I would check if the sensor is getting any signal. Maybe the wire from ecu to sensor is messed up?