ok i was comming home from work and im hearing these wierd noises comming from the back of the car, honestly sounds like the rear speakers are makeing a poping noise. or like i have pieces of bricks in the cargo area and they are slaping around, but its not when i hit a bump its just random. then the ses light somes on so i go ahead and drive to auto zone to see what the code is, the code says o2 sensor low voltage (bank 2 sensor 2) what does this mean? i would like to add that i just got hooker long tubes, pcmforless tuning and yesterday i got my 3" y pipe and exhaust put on, thanks for any and all help~gunter

 

Bank two sensor two is the passenger side after cat. autozone should be able to confirm this

 

that makes little sence, because i have o2 simulators pluged in there, and have for a while~gunter