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Old 11-30-2012, 10:27 PM
KP49 KP49 is offline
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Location: Knoxville, TN
Join Date: Nov 2012
Posts: 42
Mein Auto: 2013 X1 35i
Originally Posted by bimmerized View Post
I haven't come acrosss a similar prob on the forums and the service advisor hadn't heard of it before either. What are the symptoms of the N54/N55 HPFP failure?
Exactly what you are experiencing are bad HPFP symptoms, plus sometimes dying at a stoplight idling as well. But many other things can cause the same symptoms, even something minor like a bad sensor or a loose connector.

Last edited by KP49; 11-30-2012 at 10:29 PM.
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