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      01-08-2010, 09:43 PM   #37
Saintor
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Drives: E90
Join Date: Sep 2005
Location: MTL, Canada

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According to Wiki

Quote:
As of late 2009, the low pressure fuel sensor has become suspected of causing some premature failures of the HPFP by engine tuners such as AMS and CP-E.
http://en.wikipedia.org/wiki/BMW_N54

Any specific on the root cause design or manufacturing wise? It is the pump that can no longer build pressure? Is it a an internal leak because of a seal is not strong enough or corrosion? Anybody has pics or drawings?

It boggles my mind that no root cause stands out at this point.