Quote:
Originally Posted by jucheng
Quote:
Originally Posted by Scrippy
I haven't. I've replaced the whole system and still no luck. I'm down to 3 last possibilities. 1-Bad DME. 2-Bad bank 1 cat. 3-clogged secondary air raceway. Valencia BMW couldn't figure anything out either. So fucking frustrating!
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Damn, thanks for getting back to me so quick. Guess I will try my local BMW specialist shop and cross my fingers... |
Have you tried anything yet? I would suggest swapping O2's between bank 1 & 2. This way if you get 27B1 you would know it's an O2 sensor issue which is pretty common. I did this and still get 27B0 which is why I think it's either bank 1 carbon buildup or bank 1 cat. Is 27B0 the only error code you get?