E90Post
 


ECS BMW
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Weird rumble (not a misfire) (video)



Reply
 
Thread Tools Search this Thread
      12-06-2010, 12:26 PM   #1
k726
Member
 
Drives: 2011 335is
Join Date: May 2010
Location: Miami, Florida

Posts: 291
iTrader: (6)

Weird rumble (not a misfire) (video)

Hey all, been having this rough idle for about 500 miles now. Car is stock except for AR downpipes. Car is only throwing cat efficiency codes. So I am pretty much stumped on what the hell this issue could be.

I seafoamed the car, and put in all new fluids. Still gives a rough idle. Cold or warm doesn't make a difference. You can feel this vibration throughout the whole vehicle. When the hood is popped you can see the factory intake shake a little. Upon inspecting the RPMs, ocassionally will dip approx 25-50 rpms then go right back when this happens. No misfire codes though, and when Active Autowerke looked at each cylinder it was fine.

If anyone has experienced this and/or solved this issue please let me know. Thanks!

-Adrian

k726 is offline   United_States
0
Reply With Quote
      12-06-2010, 12:40 PM   #2
Jeff@TopGearSolutions
BimmerPost Supporting Vendor

 
Jeff@TopGearSolutions's Avatar
 
Drives: C6 Z06, GSXR-750, 09 335i
Join Date: Dec 2008
Location: TopGearSolutions.com

Posts: 16,447
iTrader: (31)

Send a message via AIM to Jeff@TopGearSolutions
You have catless downpipes and an exhaust on a stock car?

No tune?
Jeff@TopGearSolutions is offline   United_States
0
Reply With Quote
      12-06-2010, 12:40 PM   #3
enrita
Major General
 
enrita's Avatar
 
Drives: 335i - Big turbos
Join Date: Sep 2008
Location: Italian in Sweden

Posts: 7,318
iTrader: (0)

You have AR dps without a tune or 02sims? You might wanna fix the cat inefficiency codes, that could be the issue.
__________________
07 335i AT - TD St.2 Turbos - COBB (Custom Cobb mapping by http://www.protuningfreaks.com/) - JB4G5 ISO - Okada Coils - NGK 5992 Plugs - E85 Walbro - Injen Intake - Helix IC - Snow Stg. 3 - Stett CP - AR DPs - midpipes 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - Level 10 AT upgrade - Alpina AT Flash
enrita is offline   Sweden
0
Reply With Quote
      12-06-2010, 12:43 PM   #4
k726
Member
 
Drives: 2011 335is
Join Date: May 2010
Location: Miami, Florida

Posts: 291
iTrader: (6)

When I say stock I mean without software. Sorry for not posting this. Car had PROcede, Stett CP/tial BoV, K&N Drop In Filter, AR Catless DPs. Now it just has the DPs on. Took out the PROcede to make sure that it was not the cause of the rumble. The car has been tuned since 300 miles. Car has approx 15k now. Tune has been removed for about 300 miles. So its definitely not the tune. Cat codes arent what is causing the issue.
k726 is offline   United_States
0
Reply With Quote
      12-06-2010, 01:56 PM   #5
tscdennab
Banned
 
Drives: BMW 335i
Join Date: Oct 2010
Location: Europe

Posts: 1,811
iTrader: (0)

Garage List
2008 BMW  [3.12]
I have this issue too, though not as pronounced, it's more subtle but it is present. The car runs perfectly otherwise. Changed the spark plugs but it did not help. My next step is to change the ignition coils, at 40k miles it's about time anyway...
tscdennab is offline  
0
Reply With Quote
      12-06-2010, 02:17 PM   #6
Jeff@TopGearSolutions
BimmerPost Supporting Vendor

 
Jeff@TopGearSolutions's Avatar
 
Drives: C6 Z06, GSXR-750, 09 335i
Join Date: Dec 2008
Location: TopGearSolutions.com

Posts: 16,447
iTrader: (31)

Send a message via AIM to Jeff@TopGearSolutions
Reset adaptations perhaps.
Jeff@TopGearSolutions is offline   United_States
0
Reply With Quote
      12-06-2010, 02:21 PM   #7
JBiddy
Brigadier General
 
Drives: e90 ///M
Join Date: Apr 2008
Location: Northern/N.J

Posts: 3,611
iTrader: (9)

yeah that happened to me.... injectors are on their way out.
__________________
///M
JBiddy is offline   United_States
0
Reply With Quote
      12-06-2010, 05:25 PM   #8
k726
Member
 
Drives: 2011 335is
Join Date: May 2010
Location: Miami, Florida

Posts: 291
iTrader: (6)

I have reset adaptations multiple times. There is nothing else I can physically do besides dealer the car. If it is injectors then I will but if anyone has any other ideas or info. Lmk. Btw the car runs perfect wot. Just at idle it's annoying.

Thanks!
k726 is offline   United_States
0
Reply With Quote
      12-06-2010, 05:30 PM   #9
k726
Member
 
Drives: 2011 335is
Join Date: May 2010
Location: Miami, Florida

Posts: 291
iTrader: (6)

Oh and when the AC is on it is even quieter and occurs less frequently. God this is bugging the hell out of me.
k726 is offline   United_States
0
Reply With Quote
      12-06-2010, 06:21 PM   #10
k726
Member
 
Drives: 2011 335is
Join Date: May 2010
Location: Miami, Florida

Posts: 291
iTrader: (6)

Okay just left the house and decided to enjoy some of the cold weather. Wrong! Misfiring!

29CC
29CE
29CF
29D9

guess it's injectors. Hpfp is fine. Car always starts right up. Sad day!
k726 is offline   United_States
0
Reply With Quote
      12-06-2010, 06:23 PM   #11
k726
Member
 
Drives: 2011 335is
Join Date: May 2010
Location: Miami, Florida

Posts: 291
iTrader: (6)

Oh and restarting car doesn't do anything. Misfires continue. Let it sit for 10 minutes and car still misfires.
k726 is offline   United_States
0
Reply With Quote
      12-06-2010, 06:31 PM   #12
Jeff@TopGearSolutions
BimmerPost Supporting Vendor

 
Jeff@TopGearSolutions's Avatar
 
Drives: C6 Z06, GSXR-750, 09 335i
Join Date: Dec 2008
Location: TopGearSolutions.com

Posts: 16,447
iTrader: (31)

Send a message via AIM to Jeff@TopGearSolutions
Its either injectors coils plugs or pump then.
Jeff@TopGearSolutions is offline   United_States
0
Reply With Quote
      12-06-2010, 06:31 PM   #13
danniexi
Colonel
 
danniexi's Avatar
 
Drives: 2008 AW E92 335xi
Join Date: May 2008
Location: NJ

Posts: 2,030
iTrader: (14)

Quote:
Originally Posted by k726 View Post
Okay just left the house and decided to enjoy some of the cold weather. Wrong! Misfiring!

29CC
29CE
29CF
29D9

guess it's injectors. Hpfp is fine. Car always starts right up. Sad day!
have fun at the dealer.
danniexi is offline   South Korea
0
Reply With Quote
      12-06-2010, 06:34 PM   #14
onefastman
Major General
 
Drives: 2009 135i 2011 e92m dct
Join Date: Sep 2009
Location: Earth

Posts: 5,698
iTrader: (15)

Its your plugs. I had the EXACT same problem and i replaced the plugs and never another problem and it idles as new. Also would be interested to see if your valve cover gasket is leaking into the plug wells impeading the coil to transmit the spark correctly as was the case with me.
__________________
Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
onefastman is offline  
0
Reply With Quote
      12-06-2010, 06:39 PM   #15
k726
Member
 
Drives: 2011 335is
Join Date: May 2010
Location: Miami, Florida

Posts: 291
iTrader: (6)

Going to put the car back to stock tomorrow and take it in. I'll let you guys know what happens. This is very sad! haven't owned the car more than 6 months and it was only at the track 3 times and was well maintained.
k726 is offline   United_States
0
Reply With Quote
      12-06-2010, 06:41 PM   #16
tscdennab
Banned
 
Drives: BMW 335i
Join Date: Oct 2010
Location: Europe

Posts: 1,811
iTrader: (0)

Garage List
2008 BMW  [3.12]
Quote:
Originally Posted by onefastman View Post
Its your plugs. I had the EXACT same problem and i replaced the plugs and never another problem and it idles as new. Also would be interested to see if your valve cover gasket is leaking into the plug wells impeading the coil to transmit the spark correctly as was the case with me.
Wow, I have this problem and I found oil in my plug wells of sparkplugs 2 & 3 when I changed them ! I assumed the oil was from my last oil change when I spilled some oil in the engine cover. But that was 5000 miles ago...I have to check again the spark plug wells, that's for sure.

What is the product code of the valve cover gasket ? Is it hard to change by oneself ?
tscdennab is offline  
0
Reply With Quote
      12-10-2010, 11:23 PM   #17
ren
Captain
 
Drives: E92 335
Join Date: Jan 2007
Location: U.S.

Posts: 825
iTrader: (8)

I have the same thing and it got a lot worse after I changed my spark plugs and reset adaptations. I don't have any codes for now. Any ideas?
ren is offline  
0
Reply With Quote
      12-11-2010, 12:29 AM   #18
k726
Member
 
Drives: 2011 335is
Join Date: May 2010
Location: Miami, Florida

Posts: 291
iTrader: (6)

Car is back from dealer. They reset software, and the hard misfires are gone. It's still misfiring on idle and it's not perfect but not throwing codes. SA told me to take it home and throw codes an he would have a turbo swap ready and new plugs injectors and hpfp. This SA is amazing and came highly recommended by a close relative.
k726 is offline   United_States
0
Reply With Quote
      12-11-2010, 12:31 AM   #19
tofu-
Banned
 
Drives: 335i Jet Black/Coral Red
Join Date: Mar 2010
Location: nyc

Posts: 2,858
iTrader: (4)

a turbo swap?

that's a bit frightening, as i had the same problem this morning
tofu- is offline  
0
Reply With Quote
      11-27-2011, 12:18 PM   #20
dh5379
Enlisted Member
 
Drives: 2008 335i Coupe
Join Date: Dec 2008
Location: Monterey, CA

Posts: 31
iTrader: (0)

what was the fix?

Report in, what fixed the pproblem???


Quote:
Originally Posted by k726 View Post
Car is back from dealer. They reset software, and the hard misfires are gone. It's still misfiring on idle and it's not perfect but not throwing codes. SA told me to take it home and throw codes an he would have a turbo swap ready and new plugs injectors and hpfp. This SA is amazing and came highly recommended by a close relative.
dh5379 is offline  
0
Reply With Quote
      11-27-2011, 06:58 PM   #21
Supra98
Private First Class
 
Drives: E92 335i
Join Date: Sep 2011
Location: Gahanna, Ohio

Posts: 142
iTrader: (1)

^x2, having the same problem. Dealer replaced my hpfp and updated my software but still having the same problem.
Supra98 is offline  
0
Reply With Quote
      11-27-2011, 07:15 PM   #22
stratos_335
First Lieutenant
 
Drives: BMW 335i
Join Date: Sep 2009
Location: Greece

Posts: 327
iTrader: (0)

I had the same issue since I bought the car. Revs stayed constant at idle but I could hear the stumbling. It continued until 24.000 km and disappeared when I changed my spark plugs.
stratos_335 is offline  
0
Reply With Quote
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
Forum Jump


All times are GMT -5. The time now is 03:57 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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