OBD 2, code P0161 O2 sensor.

[GTHMH]

Hello.

My father has 97 Q45, and he failed to pass the state inspection due to an O2 sensor and a knock sensor.

I have ODB2 code P0161 for O2 sensor, Bank 2 sensor 2,and P0330 for Knock sensor, Bank 2

The thing is that I don't know which one is out just by knowing bank 2 sensor 2.

I know that 97 Q45 has 4 O2 sensors, 2 before catalist, 2 after.

Can anyone explain me which one is to go in direction ??

Thank you.

[maxnix]

Bank 2 is the passenger side. Sensor 2 is the secondary sensor.

Sounds like both are gone. http://www.sparkplugs.com has the best price (or maybe Wes), but call as the website will not give you the correct part number necessarily.