Thread: N54 Engine Woes
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      06-07-2014, 01:26 PM   #31
Dmacc
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Drives: 2011 BMW 1M
Join Date: Mar 2010
Location: So Cal

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This does sound like a hpfp issue. However I dealt with some misfires just like this at 26k miles. I had injectors, plugs, and coils all replaced under warranty, but still had the issue. After walnut blasting, my misfires disappeared and never resurfaced. Could the hpfp still be faulty even if it passes the dealer's check tests?
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