Quote:
Originally Posted by BMWM.D.
I get this fault code stored when I run 30% ethanol, but never saw it when I was running 20% -- though I was on a less aggressive map on the 20%.
I wouldn't be too worried about this fault on it's own. I see this code on a lot of stock cars. BMW even has a service bulletin stating not to worry about it unless there are other fuel system related faults stored. As long as your AFR and fuel trims look good, I wouldn't be worried. It is a sign that you might be reaching the limits of the stock in-tank pump, though.
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