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LA1Z24 · 05-06-2026, 03:11 PM

The vacuum pump and HPFP are timed. They have a cam position sensor on the side of the vacuum pump housing. We have had threads on this forum this year with people that had mis-timed HPFPs

05-06-2026, 03:11 PM	#38
LA1Z24 Major 671 Rep 1,327 Posts Drives: 2014 435i M Sport Join Date: Oct 2020 Location: Long Island iTrader: (0)	The vacuum pump and HPFP are timed. They have a cam position sensor on the side of the vacuum pump housing. We have had threads on this forum this year with people that had mis-timed HPFPs
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