E90Post
 


Extreme Power House
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Long Starts



Reply
 
Thread Tools Search this Thread
      11-17-2012, 07:25 PM   #1
CoralRed335XI
First Lieutenant
20

 
Drives: 2008 E92 335XI Coupe
Join Date: Aug 2011
Location: NJ,MD


Posts: 380
iTrader: (2)

Garage List
2008 BMW 335XI  [0.50]
Long Starts

I've been experiencing long starts and rough idle. Dealership replaced HPFP under warranty, but the problems still exist. Any ideas?
__________________
2008 E92 335XI, Space Gray on Coral Red, Premium, Cold Weather, Comfort Access, iPod.
Appreciate 0
      11-18-2012, 09:19 AM   #2
CoralRed335XI
First Lieutenant
20

 
Drives: 2008 E92 335XI Coupe
Join Date: Aug 2011
Location: NJ,MD


Posts: 380
iTrader: (2)

Garage List
2008 BMW 335XI  [0.50]
Anyone?
__________________
2008 E92 335XI, Space Gray on Coral Red, Premium, Cold Weather, Comfort Access, iPod.
Appreciate 0
      11-18-2012, 11:41 AM   #3
BMWM.D.
Stupid Idiot
17

 
BMWM.D.'s Avatar
 
Drives: E90 335i & C6 Grand Sport
Join Date: May 2009
Location: Santa Barbara


Posts: 687
iTrader: (1)

Possibly the low-pressure fuel sensor, but you would usually have a fault stored for it.
__________________
Appreciate 0
      11-18-2012, 12:04 PM   #4
Gugs
Cynical
United_States
11

 
Gugs's Avatar
 
Drives: E92 JetBlack
Join Date: Jul 2012
Location: Long island


Posts: 431
iTrader: (1)

Well first-What is considered a long start?
Appreciate 0
      11-18-2012, 02:30 PM   #5
CoralRed335XI
First Lieutenant
20

 
Drives: 2008 E92 335XI Coupe
Join Date: Aug 2011
Location: NJ,MD


Posts: 380
iTrader: (2)

Garage List
2008 BMW 335XI  [0.50]
Quote:
Originally Posted by Gugs View Post
Well first-What is considered a long start?
3 seconds
__________________
2008 E92 335XI, Space Gray on Coral Red, Premium, Cold Weather, Comfort Access, iPod.
Appreciate 0
      11-18-2012, 04:17 PM   #6
BMWM.D.
Stupid Idiot
17

 
BMWM.D.'s Avatar
 
Drives: E90 335i & C6 Grand Sport
Join Date: May 2009
Location: Santa Barbara


Posts: 687
iTrader: (1)

Have you checked for faults or monitored low-pressure fuel pressure electrically/mechanically?
__________________
Appreciate 0
      11-18-2012, 04:38 PM   #7
Gugs
Cynical
United_States
11

 
Gugs's Avatar
 
Drives: E92 JetBlack
Join Date: Jul 2012
Location: Long island


Posts: 431
iTrader: (1)

Quote:
Originally Posted by CoralRed335XI

3 seconds
Might just Normal...you push the button and it doesn't kick over instantly doesn't always mean theres a problem.

I have all fresh fuel pumps, coils, plugs, injectors. My car sometimes kicks instantly. Other times 1-3 seconds. In my experience I would say 3 seconds is the Max though and it kicks over on the 3rd second.
Anything more then that I would be concerned.

What kind of fuel are you running? 93?
Appreciate 0
      11-18-2012, 06:39 PM   #8
MilehighM3
Colonel
29

 
MilehighM3's Avatar
 
Drives: E90 M3
Join Date: May 2011
Location: Colorado Springs


Posts: 2,161
iTrader: (9)

Long crank times on cold engines, coupled with rough running= injectors.
Appreciate 0
      11-18-2012, 08:46 PM   #9
CoralRed335XI
First Lieutenant
20

 
Drives: 2008 E92 335XI Coupe
Join Date: Aug 2011
Location: NJ,MD


Posts: 380
iTrader: (2)

Garage List
2008 BMW 335XI  [0.50]
Quote:
Originally Posted by Gugs View Post
Might just Normal...you push the button and it doesn't kick over instantly doesn't always mean theres a problem.

I have all fresh fuel pumps, coils, plugs, injectors. My car sometimes kicks instantly. Other times 1-3 seconds. In my experience I would say 3 seconds is the Max though and it kicks over on the 3rd second.
Anything more then that I would be concerned.

What kind of fuel are you running? 93?
Thanks. I always run 93. I also took a video and will post it here. I am also going to send the video to me SA.
__________________
2008 E92 335XI, Space Gray on Coral Red, Premium, Cold Weather, Comfort Access, iPod.
Appreciate 0
      11-18-2012, 09:29 PM   #10
Wedge1967
Banned
United_States
29

 
Drives: '07 e92 AT Sport Montego Blue
Join Date: Sep 2011
Location: Portland, OR


Posts: 2,172
iTrader: (3)

Have the dealer look at your injectors. Does it smell like raw fuel after cold start? If so you have an injector bank going out.
Appreciate 0
      11-19-2012, 11:21 AM   #11
CoralRed335XI
First Lieutenant
20

 
Drives: 2008 E92 335XI Coupe
Join Date: Aug 2011
Location: NJ,MD


Posts: 380
iTrader: (2)

Garage List
2008 BMW 335XI  [0.50]
Quote:
Originally Posted by Wedge1967 View Post
Have the dealer look at your injectors. Does it smell like raw fuel after cold start? If so you have an injector bank going out.
It does smell like it's running rich on startup!
__________________
2008 E92 335XI, Space Gray on Coral Red, Premium, Cold Weather, Comfort Access, iPod.
Appreciate 0
      11-19-2012, 01:43 PM   #12
Wedge1967
Banned
United_States
29

 
Drives: '07 e92 AT Sport Montego Blue
Join Date: Sep 2011
Location: Portland, OR


Posts: 2,172
iTrader: (3)

Quote:
Originally Posted by CoralRed335XI View Post
It does smell like it's running rich on startup!
I had the same thing happen a few months after I bought my car and the dealer ended up replacing a bank of injectors to fix the problem. It will get worse the longer you let it go and eventually they injectors will run wide open and the car will run like shit until it warms up and can burn off the fuel. So, I would get it into the dealership as soon as possible if you have coverage.
Appreciate 0
      11-19-2012, 02:25 PM   #13
GetSomeE92
Major
United_States
17

 
Drives: '09 Space Gray E92
Join Date: Mar 2011
Location: Miami, FL


Posts: 1,119
iTrader: (7)

Quote:
Originally Posted by Bmw135er View Post
Long crank times on cold engines, coupled with rough running= injectors.
Boom, head shot.

I was having the same problem and the dealer just replaced all 6 injectors under the warranty.
Appreciate 0
      11-19-2012, 02:33 PM   #14
CoralRed335XI
First Lieutenant
20

 
Drives: 2008 E92 335XI Coupe
Join Date: Aug 2011
Location: NJ,MD


Posts: 380
iTrader: (2)

Garage List
2008 BMW 335XI  [0.50]
__________________
2008 E92 335XI, Space Gray on Coral Red, Premium, Cold Weather, Comfort Access, iPod.
Appreciate 0
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 08:45 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