mayjarjar

Hey guys, my 2006 TL just threw a P1054 code today. I looked up the code and it seems like it has something to do with the APP sensor. Yesterday I tightened up with cable running to throttle body to improve throttle response cause the cable had quite a bit a slack. I wouldn't say I tightened it enough to cause a problem though. This past weekend I also cleaned out the throttle body and replaced the intake hose. Do any of you think this could be causing the problem or is there something else? The code mentioned a BBV sensor but I'm not sure what that is

mayjarjar

So I pulled a dumb dumb and didn't even read the code description on scanner before I googled the case. The description says "O2 sensor circuit no activity detected Bank 2 Sensor 1". I'm assuming I need to check the wiring around the O2 sensor and may have to replace the O2 sensor. I was doing some research and found out that our cars have an upstream and downstream sensor? Not sure which one I would need to replace though

justnspace

iTrader: (1)

FIREWALL
bank2 (cylinder 4,5,6):
sensor 1 sensor 2.
bank1(cylinder 1,2,3):
sensor 1 sensor 2.
RADIATOR

so your code is calling for the 2nd bank or head that houses cylinder 4,5,6 and I believe the upstream 02 sensor.

mayjarjar

Thanks for the info man! Just started my car again and it threw a second code.... P2247. Another 02 sensor related code

mayjarjar

After doing a bunch of research I've found out that the B2S1 is the front air flow sensor. I believe that would make it and upstream sensor. Apparently our cars have 4 O2 sensors. Anyway, I took a picture if the sensor I believe I'm having issues with. Now I just have to find the right part number.

abhall12

Hey did you change your B2S1 upstream O2 sensor? And if so did it remove the P1054 code? Thanks in advance since I just had the same code appear.