F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > B58 Turbo Engine / Drivetrain / Exhaust Modifications > Rotten egg smell in cabin
VIBE Motorsports
Post Reply
 
Thread Tools Search this Thread
      05-21-2021, 10:00 PM   #1
Sleeper340i
Second Lieutenant
66
Rep
202
Posts

Drives: BMW 340i
Join Date: Nov 2019
Location: Seattle

iTrader: (0)

Rotten egg smell in cabin

I've been having this rotten egg smell ever since I started E40 tuning. Could my leaky valve cover gasket be causing this smell? Don't think burning oil would smell like rotten eggs though. I'm thinking also injector going bad maybe? Smell does happen on pump too but it is a different type of smell.

Wasn't worried too much about it till I smelt it 3x today during a drive when it's usually only once. Would make complete sense to me if the valve cover gasket leak is getting worse hence why I smelled it even more often today.

BTW: running a catless downpipe so it can't be my cat converter going out.
Appreciate 0
      05-21-2021, 10:09 PM   #2
G.Newt
Captain
364
Rep
816
Posts

Drives: B58 6MT
Join Date: Feb 2017
Location: CO -> TX

iTrader: (0)

Rotten egg smell is usually a failure somewhere in the fuel system since you have no cats. Possibly an injector.
__________________
2016 340i xDrive 6-speed.
FBO. Stage 2 E30 BM3. 440hp / 515lb-ft (Mustang Dyno)
Appreciate 0
      05-21-2021, 11:14 PM   #3
Sleeper340i
Second Lieutenant
66
Rep
202
Posts

Drives: BMW 340i
Join Date: Nov 2019
Location: Seattle

iTrader: (0)

Quote:
Originally Posted by G.Newt View Post
Rotten egg smell is usually a failure somewhere in the fuel system since you have no cats. Possibly an injector.
I was highly suspecting the injector as well. Do you think the injector going bad could also create some weird clicking noise in the engine bay? Sound gets loud during morning starts and louder after pulls too when stopped at a light afterwards. (Sound also gets quieter when running E) Don't believe it's my HPFP as that's a different ticking sound.
Appreciate 0
      05-24-2021, 09:39 PM   #4
les anderson
Private First Class
128
Rep
198
Posts

Drives: 340i
Join Date: Jan 2019
Location: Miami

iTrader: (0)

What about the battery?
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 06:36 AM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST