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Question 1) My check engine light came on a couple weeks ago and at the same time, noticed while accelerating through about 3500rpm, engine starts hesitating quite a bit. Hooked up a scanner and got a P0175 (Bank 2 is running rich). Could this be caused by a faulty pre-cat O2 sensor or something else? I've checked the maf sensor and it is perfectly clean (I dont use an oiled air filter).
Question 2) I also have a very slight vibration sound (cannot feel it, only hear it) coming from the front end. I think its a passenger side bearing. Frequency of noise changes slightly as I corner and it gradually gets louder as I accelerate being loudest around 80 kph. This noise started shortly after I replaced passenger side lower control arm. Any thoughts about whether or not this could be a bearing? Or something else?
Any and all help is appreciated.
Question 2) I also have a very slight vibration sound (cannot feel it, only hear it) coming from the front end. I think its a passenger side bearing. Frequency of noise changes slightly as I corner and it gradually gets louder as I accelerate being loudest around 80 kph. This noise started shortly after I replaced passenger side lower control arm. Any thoughts about whether or not this could be a bearing? Or something else?
Any and all help is appreciated.