I got a CEL for increased emissions, and when I took it in they said it misfired on all 8 cylinders. Asked if I ran out of gas (I didnt) because that would cause it. In the end, they told me that it was starved of fuel momentarily for some reason, and the CEL comes on as a precaution for them to give it a look.
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2011 Jet Black E90 M3
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