Boost leak!

ShaneN55 · 06-11-2018, 09:50 PM

Hi, I just recently went Pure Stage 2. Went out to get a custom tune from a local friend and we noticed at 17 pounds of boost the car suddenly goes down to 4 pounds. It seems I have a leak but how do I go about getting the car tested at 17 pounds?

Any input helps.
Thank you.

weehe126 · 06-12-2018, 09:26 AM

Two other options are: boost solenoid is bad or the silicone coupler on the air intake is collapsing. Post a log for us to look at.

ShaneN55 · 06-12-2018, 09:52 AM

Quote:

Originally Posted by weehe126

Two other options are: boost solenoid is bad or the silicone coupler on the air intake is collapsing. Post a log for us to look at.

I'll post one later today when he can send me one. Also didn't think of the boost solenoid and had no idea about the silicone coupler. Thanks!

eyehategod · 06-13-2018, 07:32 PM

Sorry to latch onto your thread. Our problem is identical so maybe we can both get an answer. I seem to also be having a boost leak, I already checked the lower - > upper charge pipe and the connection to the intake. My leak is audible, that's why I wonder if it could even be the solenoid? This also happened to me after going to stage 2 e30, although I haven't gotten around to installing my catless downpipe yet.

ShaneN55 · 06-14-2018, 02:03 AM

Quote:

Originally Posted by eyehategod

Sorry to latch onto your thread. Our problem is identical so maybe we can both get an answer. I seem to also be having a boost leak, I already checked the lower - > upper charge pipe and the connection to the intake. My leak is audible, that's why I wonder if it could even be the solenoid? This also happened to me after going to stage 2 e30, although I haven't gotten around to installing my catless downpipe yet.

All good man. Hopefully we can get this figured out. I'm dropping my car off Friday at the shop I had my turbos done at. I'll let you know if they find anything.

E90joee · 07-21-2018, 12:37 PM

Ive had a leak from some time and ive constantly adjusted all couplers and still heard some sort of leak until i found out this peice had a hairline crack i replaced it and everythings been good its worth checking out just incase goodluck guys

weehe126 · 07-21-2018, 06:43 PM

That would cause a vacuum leak, not a boost leak.

06-11-2018, 09:50 PM	#1
ShaneN55 Member 87 Rep 155 Posts Drives: BMW M3 Join Date: Jun 2016 Location: California iTrader: (0) Garage List 2011 BMW 335i [0.00] 1966 Mustang [0.00]	Boost leak! Hi, I just recently went Pure Stage 2. Went out to get a custom tune from a local friend and we noticed at 17 pounds of boost the car suddenly goes down to 4 pounds. It seems I have a leak but how do I go about getting the car tested at 17 pounds? Any input helps. Thank you. __________________ E92 M3, 958 Cayenne S, 1966 & 1968 Mustang @ 958.shane
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06-12-2018, 09:26 AM	#2
weehe126 Brigadier General 1161 Rep 3,189 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	Two other options are: boost solenoid is bad or the silicone coupler on the air intake is collapsing. Post a log for us to look at.
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06-13-2018, 07:32 PM	#4
eyehategod Second Lieutenant 41 Rep 220 Posts Drives: 2012 335i Xdrive (E92) Join Date: Jan 2018 Location: Washington D.C. iTrader: (0)	Sorry to latch onto your thread. Our problem is identical so maybe we can both get an answer. I seem to also be having a boost leak, I already checked the lower - > upper charge pipe and the connection to the intake. My leak is audible, that's why I wonder if it could even be the solenoid? This also happened to me after going to stage 2 e30, although I haven't gotten around to installing my catless downpipe yet.
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07-21-2018, 12:37 PM	#6
E90joee Captain 147 Rep 796 Posts Drives: 2011 335i xdrive Join Date: Feb 2013 Location: queens, ny iTrader: (0)	Ive had a leak from some time and ive constantly adjusted all couplers and still heard some sort of leak until i found out this peice had a hairline crack i replaced it and everythings been good its worth checking out just incase goodluck guys Attached Images
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07-21-2018, 06:43 PM	#7
weehe126 Brigadier General 1161 Rep 3,189 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	That would cause a vacuum leak, not a boost leak.
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