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      06-14-2021, 09:18 PM   #5
Alturiak
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Drives: 2011 E92 335i
Join Date: Mar 2015
Location: Los Angeles, CA

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Quote:
Originally Posted by wheela View Post
It would also be worth checking out your pressure converter - is the solenoid valve that controls the vacuum to the wastegate. People have trouble with those causing low boost when they're on the way out. Also check the vacuum line between this valve and the wastegate, as they can partially collapse over time, limiting the amount of vacuum sent to the waste gate (so it doesn't close as much as it should).
By pressure converter do you mean the boost solenoid that sits right near the O2 sensor clips? Because that has been replaced, as well as the vacuum line itself less than 10k miles ago.
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2011 E92 M-Sport BSM, Built N55 with 9.5:1 compression and forged internals, VAC Stage 3 Ported Head, custom tuned by Twisted Tuning, PR Coils, Pure Stage 2, Fuel It! Phoenix Race PI Manifold, StopTech BBK 380mm front 345mm rear, BBS CH-R Titanium, Dinan exhaust w/black tips, BMS Intake, DCT shifter retrofit, VRSF 3.5" downpipe, VRSF 7" HD IC, CSL CF trunk, 335is Rear Diffusor, Alpina B3 Trans Flash
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