Need Help! Turbo Whine?!

Rem_F30 · 03-10-2018, 05:36 PM

Whats up everyone, I just recently got a hold of a beautiful looking 335i.

The car had some some stuff when I bought it, but it was not tuned.

BMS Intakes
Fmic
Vargas CHRA Replacements

Once I got it I immediately flashed MHD Stage 1+

Everything was going smooth so I got some DP's and flashed Stage 2+

Everything was going good, car pulled strong and hard then all of a sudden I got this whining noise and it was making no boost. Logs show that it never went over .5psi which I believe is Limp mode.

Checked underneath the car to find out that the rear inlet slid off of the turbo, but while I was trying to put it back on it had cracked...I figured not a problem and ordered VRSF Stock location silicone inlets.

Got them installed and started the car up...whine is still there! MHD Pulls a code 30ff ONLY under load, after idling for about 1 or 2m the cel goes off.

Heres what I have tried:

-Put stock DP's back on
-Replaced all vacuum lines
-Replaced both turbo to downpipe gaskets
-Flashed back to MHD Stage 0

Whats weird is if I start it on a cold start, the whine is very noticeable but eventually goes away. Once it does the only time you can hear it is under load or revving it above 3k+.

Any ideas!? I uploaded some videos so maybe that can help yall undertstand

Rem_F30 · 03-11-2018, 09:30 PM

UPDATE:

I can make the sound go away by unplugging one of the cannisters at the top...

Im still stumped as I dont understand the way everything works just yet

siphor1989 · 03-11-2018, 10:46 PM

Sounds like your turbos are shot... When you unplugged those vacuum canisters, the wastegates are left wide open so the exhaust gasses bypass the turbos.

musa · 03-13-2018, 02:36 PM

Search for code 30ff in this forum. Lots of hits and the main takeaway scanning the results is that you're most likely having a leak. And here's some DIY on how to find out exactly where the leak is:
https://blog.protuningfreaks.com/201...k-testing-diy/

Good luck and keep us posted on your progress report

Rem_F30 · 03-18-2018, 01:46 PM

UPDATE:

Brought it to SSR Performance for a diagnostic and they said the turbo was shot.

Upgrading to Pure Stage 2 👍

03-10-2018, 05:36 PM	#1
Rem_F30 New Member 2 Rep 10 Posts Drives: White 2007 N54 E92 Join Date: Mar 2018 Location: Hesperia iTrader: (0)	Need Help! Turbo Whine?! Whats up everyone, I just recently got a hold of a beautiful looking 335i. The car had some some stuff when I bought it, but it was not tuned. BMS Intakes Fmic Vargas CHRA Replacements Once I got it I immediately flashed MHD Stage 1+ Everything was going smooth so I got some DP's and flashed Stage 2+ Everything was going good, car pulled strong and hard then all of a sudden I got this whining noise and it was making no boost. Logs show that it never went over .5psi which I believe is Limp mode. Checked underneath the car to find out that the rear inlet slid off of the turbo, but while I was trying to put it back on it had cracked...I figured not a problem and ordered VRSF Stock location silicone inlets. Got them installed and started the car up...whine is still there! MHD Pulls a code 30ff ONLY under load, after idling for about 1 or 2m the cel goes off. Heres what I have tried: -Put stock DP's back on -Replaced all vacuum lines -Replaced both turbo to downpipe gaskets -Flashed back to MHD Stage 0 Whats weird is if I start it on a cold start, the whine is very noticeable but eventually goes away. Once it does the only time you can hear it is under load or revving it above 3k+. Any ideas!? I uploaded some videos so maybe that can help yall undertstand Last edited by Rem_F30; 03-10-2018 at 05:43 PM..
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03-11-2018, 09:30 PM	#2
Rem_F30 New Member 2 Rep 10 Posts Drives: White 2007 N54 E92 Join Date: Mar 2018 Location: Hesperia iTrader: (0)	UPDATE: I can make the sound go away by unplugging one of the cannisters at the top... Im still stumped as I dont understand the way everything works just yet
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03-11-2018, 10:46 PM	#3
siphor1989 Lieutenant 205 Rep 569 Posts Drives: 2020 m340i xdrive Join Date: May 2015 Location: . iTrader: (3)	Sounds like your turbos are shot... When you unplugged those vacuum canisters, the wastegates are left wide open so the exhaust gasses bypass the turbos.
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03-13-2018, 02:36 PM	#4
musa Captain 446 Rep 928 Posts Drives: F86, E92, E53, E39. Join Date: Jul 2014 Location: Bellevue, WA iTrader: (0)	Search for code 30ff in this forum. Lots of hits and the main takeaway scanning the results is that you're most likely having a leak. And here's some DIY on how to find out exactly where the leak is: https://blog.protuningfreaks.com/201...k-testing-diy/ Good luck and keep us posted on your progress report
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03-18-2018, 01:46 PM	#5
Rem_F30 New Member 2 Rep 10 Posts Drives: White 2007 N54 E92 Join Date: Mar 2018 Location: Hesperia iTrader: (0)	UPDATE: Brought it to SSR Performance for a diagnostic and they said the turbo was shot. Upgrading to Pure Stage 2 👍
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