Check Engine code (P0154)

[gstspyder1998]

I checked online and I got the following for this code: O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 1). My question is, how do I fix this and how do I know which O2 sensor needs to be replaced. I'd appreciate any help on this problem. Thanks.

 

[gstspyder1998]

Anybody know how to fix this problem?

 

[SpeedFreak03]

AFAIK, Bank 2 is the one after the cat (also called the downstream O2 sensor). You need to replace the O2 sensor, buy one from the dealer or get a denso one. You will also need a O2 socket to get the O2 sensor off. I've never changed one but I think you just find it (look for a plug thing with a wire coming out of it right after the cat), unhook the wire, unscrew the old one, put anti-seize on the new one, screw it in, and hook up the wire (dont quote me on that as I've never personally changed one).