E90Post
 


GT Haus
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Sluggish when accelerating at times



Reply
 
Thread Tools Search this Thread
      08-29-2014, 09:21 AM   #1
dangeris
Private First Class
 
dangeris's Avatar
 
Drives: 08 e92 328xi
Join Date: Aug 2011
Location: Chalfont Pa

Posts: 199
iTrader: (3)

Sluggish when accelerating at times

So, like the subject says, there are times when the car is in the drive mode, and when I step on the gas, the car hesistates then the check engine light comes on. When I step on the gas, it seems like the choke is on as the car loses power and "tries" to get up to speed. If I lay off the gas and drive modestly, the CEL lights sometimes goes off. Other times when it happens, I pull off to the side of the road, turn off the car then restart it and all is good again., It never did this before and it seems to start happening a couple of months ago.

Has this happened to anyone else out there? If so, what could be causing it? throttle position sensor?
__________________
2008 e92 328Xi - Daily Driver
M-Tech Lip/ M-side Skirts/ Painted Grille/ 18" LM Reps/ BMS Powerbox/ Koni Sport/ B&G S2 Springs
2008 Nissan Altima Coupe - Show Car
Too many mods to list...
dangeris is offline  
0
Reply With Quote
      08-29-2014, 09:25 AM   #2
Tim603
Captain
 
Tim603's Avatar
 
Drives: 2007 328xi coupe
Join Date: Feb 2012
Location: Manchester Nh

Posts: 928
iTrader: (2)

Did you run the code?
__________________
Tim603 is offline   United_States
0
Reply With Quote
      08-29-2014, 09:39 AM   #3
dangeris
Private First Class
 
dangeris's Avatar
 
Drives: 08 e92 328xi
Join Date: Aug 2011
Location: Chalfont Pa

Posts: 199
iTrader: (3)

No I haven't. When it happens Im no where near a shop that can run the code and when I do the code clears..
__________________
2008 e92 328Xi - Daily Driver
M-Tech Lip/ M-side Skirts/ Painted Grille/ 18" LM Reps/ BMS Powerbox/ Koni Sport/ B&G S2 Springs
2008 Nissan Altima Coupe - Show Car
Too many mods to list...
dangeris is offline  
0
Reply With Quote
      08-29-2014, 10:45 AM   #4
bhmax16
Second Lieutenant
 
Drives: 2007 328xi E92
Join Date: Jul 2011
Location: Mass

Posts: 211
iTrader: (0)

Even if your light turns back off the code should still be stored in your history. BT tool and the like can pull history codes
bhmax16 is offline  
0
Reply With Quote
      08-29-2014, 11:45 AM   #5
Casca
Captain
 
Drives: E90 6MT
Join Date: May 2010
Location: California

Posts: 630
iTrader: (0)

I'd start by cleaning out the mass airflow sensor with http://www.amazon.com/CRC-05110-Mass...sensor+cleaner . Search on this site for how to do it, very easy and takes 5 minutes or so.
Casca is offline  
0
Reply With Quote
      08-29-2014, 12:17 PM   #6
mecbain
Private First Class
 
Drives: e90 330i
Join Date: Feb 2013
Location: Montreal, Canada

Posts: 180
iTrader: (0)

I had very similar problem when ignition coils/sparkplugs needed replacement.
mecbain is offline  
0
Reply With Quote
      08-29-2014, 01:19 PM   #7
dangeris
Private First Class
 
dangeris's Avatar
 
Drives: 08 e92 328xi
Join Date: Aug 2011
Location: Chalfont Pa

Posts: 199
iTrader: (3)

How many miles was on the clock when that starting happening? I have 83K on mine
__________________
2008 e92 328Xi - Daily Driver
M-Tech Lip/ M-side Skirts/ Painted Grille/ 18" LM Reps/ BMS Powerbox/ Koni Sport/ B&G S2 Springs
2008 Nissan Altima Coupe - Show Car
Too many mods to list...
dangeris is offline  
0
Reply With Quote
      08-29-2014, 01:33 PM   #8
GoRomeo
Colonel
 
GoRomeo's Avatar
 
Drives: 330i
Join Date: Feb 2006
Location: San Diego CA

Posts: 2,198
iTrader: (0)

Garage List
2006 330i  [2.83]
I sometimes I experience some hesitation. I did replace my spark plugs but NOT my coils. Still running on originals at 117k miles. I think I am due for new coils hopefully the hesitation will go away.
GoRomeo is offline  
0
Reply With Quote
      09-09-2014, 01:03 PM   #9
GoRomeo
Colonel
 
GoRomeo's Avatar
 
Drives: 330i
Join Date: Feb 2006
Location: San Diego CA

Posts: 2,198
iTrader: (0)

Garage List
2006 330i  [2.83]
I noticed that when turning on a curve at low speeds I experience a little jerk in speed and hesitates. I tested my coils by unplugging each one with car running and they are all are good. I will do a bottle of Chevron to clean my injectors. I will also clean my MAF sensor. It has been about 2 yrs since I cleaned it. Anyone else experiencing this...?
GoRomeo is offline  
0
Reply With Quote
      09-09-2014, 01:21 PM   #10
Volasko
Major
 
Volasko's Avatar
 
Drives: 2006 E90 330i BSM 6MT ZSP
Join Date: Dec 2010
Location: Toronto

Posts: 1,105
iTrader: (2)

Garage List
It could be your vanos solenoids. Do you have situations were the RPM needle seems to have a mind of its own and fluctuates up and down? Sometimes the solenoid valve gets clogged and causes the engine to run sluggish and throws a code. Do a search, it is an easy fix.
Volasko is offline   Canada
0
Reply With Quote
      09-09-2014, 01:35 PM   #11
GoRomeo
Colonel
 
GoRomeo's Avatar
 
Drives: 330i
Join Date: Feb 2006
Location: San Diego CA

Posts: 2,198
iTrader: (0)

Garage List
2006 330i  [2.83]
Quote:
Originally Posted by Volasko View Post
It could be your vanos solenoids. Do you have situations were the RPM needle seems to have a mind of its own and fluctuates up and down? Sometimes the solenoid valve gets clogged and causes the engine to run sluggish and throws a code. Do a search, it is an easy fix.
I see situations only at times were my RPMs are higher than normal even when engine warm, but I thought this is caused by my open thermostat I have had for over 2 years. I cleaned and swapped my vanos solenoids about 2 yrs ago. I get no codes or anything. Maybe I need to replace them now? I will read more on these... Thanks
GoRomeo is offline  
0
Reply With Quote
      09-09-2014, 01:46 PM   #12
Delta0311
Brigadier General
 
Delta0311's Avatar
 
Drives: 2011 BMW 335xi E92
Join Date: Apr 2009
Location: NJ

Posts: 3,604
iTrader: (1)

Could be any of the following
dirty MAF
bad ignition coil
worn out spark plugs
bad VANOS solenoid
__________________
Space Gray 2011 335xi E92
Delta0311 is offline  
0
Reply With Quote
      09-09-2014, 01:51 PM   #13
GoRomeo
Colonel
 
GoRomeo's Avatar
 
Drives: 330i
Join Date: Feb 2006
Location: San Diego CA

Posts: 2,198
iTrader: (0)

Garage List
2006 330i  [2.83]
Quote:
Originally Posted by Delta0311 View Post
Could be any of the following
dirty MAF
bad ignition coil
worn out spark plugs
bad VANOS solenoid
thanks, I will start by cleaning my MAF, I already changed my spark plugs last year so I dont think this is the issue. I tested Coils and all are good.

Vanos? maybe, I cleaned them and swapped them once, still on originals but I get not codes though... how do I test these suckers...
GoRomeo is offline  
0
Reply With Quote
      09-09-2014, 01:53 PM   #14
Delta0311
Brigadier General
 
Delta0311's Avatar
 
Drives: 2011 BMW 335xi E92
Join Date: Apr 2009
Location: NJ

Posts: 3,604
iTrader: (1)

Quote:
Originally Posted by GoRomeo View Post
thanks, I will start by cleaning my MAF, I already changed my spark plugs last year so I dont think this is the issue. Vanos? maybe, I cleaned them and swapped them once, still on originals but I get not codes though... how do I test these suckers...
If you get no codes then I doubt is the VANOS, you can test by swapping them around but again if you don't get codes then it's point less. There is also the possibility of the eccentric shaft sensor going bad. But most likely you have a faulty ignition coil.. Start with the MAF and work your way down.
__________________
Space Gray 2011 335xi E92
Delta0311 is offline  
0
Reply With Quote
      09-09-2014, 02:12 PM   #15
GoRomeo
Colonel
 
GoRomeo's Avatar
 
Drives: 330i
Join Date: Feb 2006
Location: San Diego CA

Posts: 2,198
iTrader: (0)

Garage List
2006 330i  [2.83]
Quote:
Originally Posted by Delta0311 View Post
If you get no codes then I doubt is the VANOS, you can test by swapping them around but again if you don't get codes then it's point less. There is also the possibility of the eccentric shaft sensor going bad. But most likely you have a faulty ignition coil.. Start with the MAF and work your way down.
thanks again. Yeah i get no ECL or anything. Eccentric shaft sensor, dont think so. I checked the connector few months back and is completely dry no oil. Like I mentioned earlier, I tested each coil by disconnecting each one and all make difference when I unplug them so coils are good. I will start with cleaning the MAF I guess. I do have a K & N oiled air filter since I did charcoal delete few years ago, maybe my MAF sensor is dirty now...
GoRomeo 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 04:51 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