E90Post
 


GTB Performance
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Hesitation after DPF removal E 90 330D 57 plate



Reply
 
Thread Tools Search this Thread
      01-16-2013, 12:20 PM   #1
jacko1971
New Member
 
Drives: E90 330D M Sport
Join Date: Feb 2012
Location: England

Posts: 9
iTrader: (0)

Hesitation after DPF removal E 90 330D 57 plate

Just had the DPF removed from the car ( for reasons explained in another post ) so I wont explain further.

I now have a slightly different issue. Maybe linked to the DPF removal but I'm unsure.

At 1500 to 2000 rpm the car has "hiccuped" ( cant think of a better description ) under acceleration in fourth and sixth gear.
Twice last night and once this morning.
I'd like to stress that it is momentary ( about a second in duration ) and I just accelerated through it. But I never had this issue before the DPf was removed.

I've tried to read up on this and this may point to a problem with the EGR valve ? BUT the EGR valve was taken off, cleaned and refitted during the DPF removal works. So can anyone point me in the right direction ????

The software guy was off when my car had the DPF removed so the DPF software is still present on the ECU.
I'm going to get this removed on Friday by the guy who originally remapped my car and have it "tweaked" to reflect the freer flowing exhaust.

Could the DPF software still being in the ECU be causing this issue does any one know ? Or has anyone got any other suggestions ?

Thanks in advance
jacko1971 is offline  
0
Reply With Quote
      01-16-2013, 02:08 PM   #2
Mart1000
Capt Slow
 
Mart1000's Avatar
 
Drives: Leon FR Supercopa
Join Date: Jan 2012
Location: Suffolk

Posts: 1,076
iTrader: (1)

If the ecu is still trying to get the DPF to regen when there isn't one, and its not been written out, I'd say there's you problem.
Mart1000 is offline  
0
Reply With Quote
      01-16-2013, 05:50 PM   #3
ade146
Private First Class
 
Drives: E90 330d sport auto
Join Date: Sep 2012
Location: S.Wales or Cheshire

Posts: 182
iTrader: (0)

Sounds like the egr but seeing as you didnt get the regen taken out it could be the software. I personally dont think it will try to regen if it isnt there but that is an educated guess. It wont see a delta P.
I have had mine hiccup after I had the inlet manifold apart and it was the egr. I cant remember how I fixed it as I have done so much to the car you tend to forget. Get them to map it out and give it a try then egr.
ade146 is offline   United Kingdom
0
Reply With Quote
      01-17-2013, 06:32 AM   #4
jacko1971
New Member
 
Drives: E90 330D M Sport
Join Date: Feb 2012
Location: England

Posts: 9
iTrader: (0)

Thanks for the replies fella's. I'll report back when its had the DPF software removed and been remapped tomorrow.
jacko1971 is offline  
0
Reply With Quote
      01-20-2013, 05:37 AM   #5
jacko1971
New Member
 
Drives: E90 330D M Sport
Join Date: Feb 2012
Location: England

Posts: 9
iTrader: (0)

Never had this problem since !
Since found out my temps are well down ( via hidden menus ) which means my thermostats are shot which in turn means my car wasnt even attempting to carry out Regens. Which is why my DPF was knackered.
Lesson to all:
Keep a check on your temps. If they are down then get the Main Stat and EGR stat changed. Better to do that than to have to remove / replace the ludicrously priced DPF.
jacko1971 is offline  
0
Reply With Quote
      01-21-2013, 12:30 PM   #6
ade146
Private First Class
 
Drives: E90 330d sport auto
Join Date: Sep 2012
Location: S.Wales or Cheshire

Posts: 182
iTrader: (0)

Thanks for reporting back. I still suspect it was the egr having that hiccup.
ade146 is offline   United Kingdom
0
Reply With Quote
      01-24-2013, 02:40 AM   #7
jacko1971
New Member
 
Drives: E90 330D M Sport
Join Date: Feb 2012
Location: England

Posts: 9
iTrader: (0)

Think your right mate. Still no further hiccups so Im happy.
Checked the temps on the car on the way to work yesterday and it only got to 54 degrees. Changed the EGR stat last night and achieved 77 degrees on the same journey with the same volume of traffic this morning. So Im getting to where I should be, but not still quite up to 85 / 90 where I should be I believe ? So the main coolant stat is to be changed as soon as the part arrives.
jacko1971 is offline  
0
Reply With Quote
      01-25-2013, 03:16 AM   #8
Dr Dave
Zummerzet Zyder Drinker!
 
Dr Dave's Avatar
 
Drives: '06 330D Le Mans Blue
Join Date: May 2009
Location: Somerset

Posts: 5,540
iTrader: (3)

Garage List
Main thermostat isn't that difficult to change, just be methodical and don't force anything, you'll be fine.
Dr Dave is offline   United Kingdom
0
Reply With Quote
      01-25-2013, 10:19 AM   #9
markymark34
Second Lieutenant
 
Drives: 2007 325d M Sport
Join Date: Jul 2009
Location: NI

Posts: 243
iTrader: (0)

Quote:
Originally Posted by jacko1971 View Post
Never had this problem since !
Since found out my temps are well down ( via hidden menus ) which means my thermostats are shot which in turn means my car wasnt even attempting to carry out Regens. Which is why my DPF was knackered.
Lesson to all:
Keep a check on your temps. If they are down then get the Main Stat and EGR stat changed. Better to do that than to have to remove / replace the ludicrously priced DPF.
which menu is the temp? is it 07.02 says Atmp ADC

http://e90.wetpaint.com/page/BC+hidden+menus
markymark34 is offline  
0
Reply With Quote
      01-25-2013, 08:10 PM   #10
jacko1971
New Member
 
Drives: E90 330D M Sport
Join Date: Feb 2012
Location: England

Posts: 9
iTrader: (0)

Just go to 0700 and leave it there. Temp will come up
jacko1971 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 04:50 AM.




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