N54 30ff engine code

dlay35 · 12-12-2022, 10:32 PM

So I've got an n54 and lately the cel has been on so finally read the codes and it comes up with 30ff which is a boost leak code. I'm not sure what it is because the vacuum lines were replaced recently and everything else seems to be fine but when I rev it it makes some kind of weird sounds which I will attach below. I know atleast one turbo is working because the bov still works just slightly weaker. Anyone had the same issue and can help me out?

dlay35 · 12-12-2022, 10:34 PM

Apparently it won't let me attach the video either, so I'm not sure what to do

Mani59 · 12-13-2022, 11:38 AM

Hello!

Can you try uploading your video to a streamable site like YouTube and then share the link on here?

Saif2018 · 12-14-2022, 05:07 PM

Quote:

Originally Posted by dlay35

So I've got an n54 and lately the cel has been on so finally read the codes and it comes up with 30ff which is a boost leak code. I'm not sure what it is because the vacuum lines were replaced recently and everything else seems to be fine but when I rev it it makes some kind of weird sounds which I will attach below. I know atleast one turbo is working because the bov still works just slightly weaker. Anyone had the same issue and can help me out?

Boost leaks can be caused by a number of things, not just vacumn lines, have a read through this...

https://bmwtuning.co/bmw-n54-30ff-en...-repair-guide/

dlay35 · 12-14-2022, 06:27 PM

https://youtube.com/shorts/7em_PvgrFPc?feature=share
Here is the YT link for anyone to look at. Sounds like waste gate rattle but I'm not sure... Someone confirm

12-12-2022, 10:32 PM	#1
dlay35 New Member 0 Rep 5 Posts Drives: BMW 335i Join Date: Jan 2022 Location: Michigan iTrader: (0)	N54 30ff engine code So I've got an n54 and lately the cel has been on so finally read the codes and it comes up with 30ff which is a boost leak code. I'm not sure what it is because the vacuum lines were replaced recently and everything else seems to be fine but when I rev it it makes some kind of weird sounds which I will attach below. I know atleast one turbo is working because the bov still works just slightly weaker. Anyone had the same issue and can help me out?
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12-12-2022, 10:34 PM	#2
dlay35 New Member 0 Rep 5 Posts Drives: BMW 335i Join Date: Jan 2022 Location: Michigan iTrader: (0)	Apparently it won't let me attach the video either, so I'm not sure what to do
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12-13-2022, 11:38 AM	#3
Mani59 Moderator 15985 Rep 8,155 Posts Drives: F32 435i Luxury & G26 i4 35 Join Date: Nov 2010 Location: Leicestershire iTrader: (1)	Hello! Can you try uploading your video to a streamable site like YouTube and then share the link on here? __________________ Visit my (mainly) BMW gallery http://jetone.co.uk and BMW miniature model collection http://bmw-miniatures.co.uk
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12-14-2022, 06:27 PM	#5
dlay35 New Member 0 Rep 5 Posts Drives: BMW 335i Join Date: Jan 2022 Location: Michigan iTrader: (0)	https://youtube.com/shorts/7em_PvgrFPc?feature=share Here is the YT link for anyone to look at. Sounds like waste gate rattle but I'm not sure... Someone confirm
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