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BMW 3-Series (E90 E92) Forum
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N55 vacuum low
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03-15-2019, 05:10 AM | #1 |
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N55 vacuum low
Hello everyone, new to this scene here. I have a 2011 335I n55 equipped with stage 2ppk & MHD stage 2 tune. I have a VRSF catless downpipe, drop in dry intake filter & muffler delete. I use an obdII link to monitor gauges & my vacuum reading is always very low. I've never seen it -4lbs & usually it is -2lbs if I'm in gear decelerating downhill. It fluctuates from about -1lb to 0 unless I get on it& start boost. Is this normal? What is a normal reading?
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03-25-2019, 03:26 PM | #2 |
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Anyone?
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Appreciate
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boost, n55, vacuum |
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