E90Post
 


 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Very rough running E90



Reply
 
Thread Tools Search this Thread
      09-10-2017, 09:49 AM   #1
jeff_91121
New Member
3
Rep
12
Posts

Drives: 2009 335i Sedan Auto
Join Date: Apr 2017
Location: Myrtle Beach

iTrader: (0)

Very rough running E90

I have a 2009 335i with 97000 miles. I have only owned the car for the last 5000 or so miles so I am not sure what parts have been changed and which haven't. Last night when driving and trying to accelerate engine started to misfire and check engine light came on. I am running a FMIC and MHD stage 1+ tune. I pulled the codes off the MHD and I got 29CC (misfire several cylinders), 29DO ( misfire #4), 29D1 (misfire #5). I also have been getting shadow codes for of 2FCA and 2FDA which are high pressure fuel codes. I have a data log from a couple days ago when the car was running good, and I went for a short drive today after the misfire codes to get a data log.
I flashed back to the stock map this morning and the misfire and rough running/shuttering is still there. The exhaust smells extremely rich, like unburnt fuel.
After the reflash to stock this morning I started the car and pulled the codes and now am getting 29DO (misfire #4) and 2AAF ( fuel pump plausibility).
This is the log after the misfire, which is showing a pretty big difference in AFR from bank one to bank two. http://www.datazap.me/u/jeff91121/9-...ata=3-14-15-21
This is the log before the misfire codes http://www.datazap.me/u/jeff91121/9-...og=0&data=3-21

Sorry for the long post.
Any help would be greatly appreciated, thanks.

Last edited by jeff_91121; 09-10-2017 at 10:34 AM.. Reason: added info
Appreciate 0
      09-10-2017, 06:25 PM   #2
jeff_91121
New Member
3
Rep
12
Posts

Drives: 2009 335i Sedan Auto
Join Date: Apr 2017
Location: Myrtle Beach

iTrader: (0)

Figured it out...it was a bad coil pack.
Appreciate 0
Reply

Bookmarks


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



All times are GMT -5. The time now is 10:50 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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