View Single Post
      12-31-2025, 08:38 AM   #3
SlowX6M
Captain
SlowX6M's Avatar
425
Rep
755
Posts

Drives: 2021 X6M, 2012 X5, 2018 M2
Join Date: Jun 2020
Location: NY

iTrader: (0)

Quote:
Originally Posted by jbash87 View Post
Some quick googling says 31 is a generic lamda code issue, while 2C refers to bank 2. Bank 1 would be 2B. I would think you'd get a 31 with either bank.
That's what i figure as well. 2C2C says lambda probe before catalyst 2, signal or value above threshold. I read that it might not be the O2 sensor itself, but rather something else that is causing fuel trim out of range. I am thinking maybe I swap the left/right O2 sensors, and see if the error persists, or pops on the other side - this will tell me whether it's the O2 sensor failing, or something else causing the issue.
Appreciate 1
jbash87582.00