E90Post
 


GT Haus
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > N54 engine problem helpp!!!



Reply
 
Thread Tools Search this Thread
      03-28-2012, 04:24 PM   #1
rstiv4200
Private First Class
 
Drives: 2007 335i coupe space grey
Join Date: Nov 2010
Location: wayne NJ

Posts: 126
iTrader: (2)

N54 engine problem helpp!!!

ok so something serious is going on very weird with my engine mods and specs are as follows 07 335i coupe jb3 raceland catless dps with dp fix afe dci magnaflow catback and thats it for now .....so heres whats going on i was driving on highway is 6th gear downshift to 5th cuz cop .....then punched 5th pretty hard and felt a vibration back on the gas petal so went into 6th and same thing service engine soon light came on and gas petal vibrated while driving along with whole engine it seemed like and my shift knob was shaking like crazy ...no problem shifting but extreme loss of power also ....the light went off after a day or so and was and has been coming back and forth randomly when in 5th and 6th .....i had 3 fuel pumps go on me and know what that feels like and i know its not that no smoke from turbos ....any ideas help please and thank you
rstiv4200 is offline  
0
Reply With Quote
      03-28-2012, 06:56 PM   #2
volkswackin
Lieutenant Colonel
 
Drives: too broke for a BMW
Join Date: Jan 2008
Location: i get around..

Posts: 1,900
iTrader: (1)

impossible to know without any kind of codes or anything. Any boost faults? vanos faults? how new are spark plugs? Ever had injectors or coils replaced? more info please..
volkswackin is offline   United_States
0
Reply With Quote
      03-28-2012, 07:10 PM   #3
rstiv4200
Private First Class
 
Drives: 2007 335i coupe space grey
Join Date: Nov 2010
Location: wayne NJ

Posts: 126
iTrader: (2)

i did have new coil packs replaced as a recall about 4-6 months ago but no problems since ....spark plugs have never been changed to my knowledge the car has 40k on it ....but if it were spark plugs wouldnt i be misfiring? and yes bad boost leaks while light is on normal when it is off and idk about the other thing u said
rstiv4200 is offline  
0
Reply With Quote
      03-28-2012, 11:12 PM   #4
lilballa
Second Lieutenant
 
lilballa's Avatar
 
Drives: o8 e90 335i
Join Date: Jun 2010
Location: Atlanta

Posts: 262
iTrader: (3)

Garage List
2008 BMW 335i  [0.00]
Change spark plugs. Same things happened to me when my plugs went bad. Having a tune kills your plugs fast.
__________________
2008 monaco blue e90 335i ZSP|ZPP
lilballa is offline  
0
Reply With Quote
      03-29-2012, 12:17 PM   #5
rstiv4200
Private First Class
 
Drives: 2007 335i coupe space grey
Join Date: Nov 2010
Location: wayne NJ

Posts: 126
iTrader: (2)

awsome thanks man hope this helps any specific plugs you would recomend?
rstiv4200 is offline  
0
Reply With Quote
      03-31-2012, 06:39 PM   #6
volkswackin
Lieutenant Colonel
 
Drives: too broke for a BMW
Join Date: Jan 2008
Location: i get around..

Posts: 1,900
iTrader: (1)

OEM plugs
volkswackin is offline   United_States
0
Reply With Quote
      04-01-2012, 12:04 PM   #7
Gdickey@beckman.com
New Member
 
Drives: 2007 335I
Join Date: Feb 2012
Location: LA Calif

Posts: 27
iTrader: (0)

I would try replacing the 2 vacuum lines at top front of engine first. This is quick and easy to do. Here is the post (vacuum line fix - low boost, underboost, 30ff, wastegate rattle)
I told my SA and he thanked me. He said this fix has solved some recent intermitant problems on cars with over 40,000 mile.
I did it my self at a cost of $7.00 for the vacuum line.
Hemostats (Medical scissor like pliers)work best to remove old lines and install new ones. Im changing all others vacuum lines soon.
My car runs perfect my tuner is going back on soon now that i know this was the problem. Right now my boost will max out at 9.2 psi 0n 91 oct.
Good Luck
Gdickey@beckman.com is offline   United_States
0
Reply With Quote
      04-02-2012, 11:22 AM   #8
rstiv4200
Private First Class
 
Drives: 2007 335i coupe space grey
Join Date: Nov 2010
Location: wayne NJ

Posts: 126
iTrader: (2)

thanks will give that a shot im gonna do spark plugs too cuz think there are about due anyway
rstiv4200 is offline  
0
Reply With Quote
      07-26-2012, 08:02 AM   #9
dicostal
First Lieutenant
 
dicostal's Avatar
 
Drives: 2007 335i
Join Date: Jun 2010
Location: Italian in CT - USA

Posts: 393
iTrader: (0)

Were you able to resolve the issue?. I am having the same symptoms, but the light and the vibrating is not going away :-(
I pulled over and may have to get the car towed.
__________________
GIAC stage II|AA DP|DCI|HELIX FMIC
dicostal is offline   Italy
0
Reply With Quote
      07-26-2012, 04:54 PM   #10
dicostal
First Lieutenant
 
dicostal's Avatar
 
Drives: 2007 335i
Join Date: Jun 2010
Location: Italian in CT - USA

Posts: 393
iTrader: (0)

Hi All, the dealer just called me and said that it is a bad injector and will be covered under CPO warranty.
Hopefully the car should be ready tomorrow.

I also have another issue and don't know what to do.
I have 60k miles and sill original brakes rear and front, but dealer refuses to change the brakes under the maintenance program since they are not fully warned yet. My program expires in about 6 months. How can I get this changed without the brake light on?
__________________
GIAC stage II|AA DP|DCI|HELIX FMIC
dicostal is offline   Italy
0
Reply With Quote
      07-29-2012, 06:41 PM   #11
rstiv4200
Private First Class
 
Drives: 2007 335i coupe space grey
Join Date: Nov 2010
Location: wayne NJ

Posts: 126
iTrader: (2)

sorry didnt reply yes i did oem spark plugs and injectors by warrenty and problem is 100% gone
rstiv4200 is offline  
0
Reply With Quote
      07-30-2012, 05:17 PM   #12
dicostal
First Lieutenant
 
dicostal's Avatar
 
Drives: 2007 335i
Join Date: Jun 2010
Location: Italian in CT - USA

Posts: 393
iTrader: (0)

My car is tuned and I got lucky that the dealer did not say anything. I have stock intake but that is pretty much it...
they replaced one injector, one plug and the coil. The car actually runs a bit smoother than before so this could have been a problem for awhile...
Under hard accelerations, at times it would feel like it would skip a beat, now it is gone.

Thanks
__________________
GIAC stage II|AA DP|DCI|HELIX FMIC
dicostal is offline   Italy
0
Reply With Quote
      07-30-2012, 11:38 PM   #13
SoIntoYou
Private First Class
 
Drives: BMW 335i coupe
Join Date: May 2011
Location: Augusta,GA

Posts: 159
iTrader: (0)

stop driving the car so dam hard
SoIntoYou is offline   United_States
0
Reply With Quote
      08-06-2012, 07:37 PM   #14
BANKAI
Private First Class
 
BANKAI's Avatar
 
Drives: 335i
Join Date: Jul 2011
Location: Irvine, CA

Posts: 103
iTrader: (0)

Quote:
Originally Posted by dicostal View Post
Hi All, the dealer just called me and said that it is a
I have 60k miles and sill original brakes rear and front, but dealer refuses to change the brakes under the maintenance program since they are not fully warned yet. My program expires in about 6 months. How can I get this changed without the brake light on?
Are your brakes squealing, clunking, vibrating?
Any or all of these complaints can cause an early replacement.
BANKAI is offline   United_States
0
Reply With Quote
      08-07-2012, 10:27 AM   #15
dicostal
First Lieutenant
 
dicostal's Avatar
 
Drives: 2007 335i
Join Date: Jun 2010
Location: Italian in CT - USA

Posts: 393
iTrader: (0)

lol, I accelerate very hard, but I do not like braking as hard :-)
The brakes do sqeal every now and then... thanks for the tip...

however I am still having Fuel issues, i picked up the car and 3 days later same issue worst than ever, the car died on me, they fixed it, I had a fuel leak.

I picked up the car on my way to work same issue not as harsh, got check engine light, the car is still there right now...

I will summarize everything they did once I get the car running well.

Thanks
__________________
GIAC stage II|AA DP|DCI|HELIX FMIC
dicostal is offline   Italy
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 12:29 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