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      09-12-2018, 08:49 AM   #6
tisdrew
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Drives: 2009 335i
Join Date: Dec 2015
Location: Melbourne, FL

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Quote:
Originally Posted by lcw333 View Post
Could this be the HPFP failing? When the HPFP fails, can it be gradual, or does it just fail and then go into limp mode?
Gradual failure typically. Without logs we can't determine if it's pulling timing, not hitting boost target, or not getting fuel (could be either lpfp or hpfp). Spark, air, fuel. I hope you didn't pay them for diagnostics and not get a diagnosis.
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