Check engine soon light 540i/6...help?
I was just driving my '01 540i/6 and it started to sputter and the check engine soon light started to blink then went solid. The car did not stall and I got to my destination with the car still sputtering and less power. Let car sit for about an hour and it started and drove home with same symptoms. I'm guessing possible O2 sensor. The car might have sputtered a bit this afternooon, but not enough for me to suspect a problem, maybe the cold. But after tonight and the sudden change and warning light something is up. Any help is appreciated.
Thank you in advance!!