Hi everyone, recently I got a check engine light for code P2271.
P2271: Oxygen Sensor Signal Stuck Rich Bank 1 Sensor 2
I've had a rattle/vibration in my cat since I've owned the car and was going to replace it with an HFC and new O2 sensor, but some are saying that this code isnt due to a damaged o2 sensor and my engine is running rich. I washed my car the night before the CEL arrived, could I have damaged a MAF sensor or something?
Let me know if anyone has had experience with this. Thanks!