Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E70) Forum
Arnott
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-12-2018, 10:01 AM
Member
 
Join Date: Jul 2015
Location: NY
Posts: 1
official is on a distinguished road
Yes Another misfire thread 2011 e70 N55 codes 29d0, 2d13

Been a lurker on here for a while and this is my first post. Just want to say this is a great community and it has helped me greatly so far.

I've searched this forum and e90post before posting

currently have a 2011 35i with just over 100k miles no modifications or tune. Changed maf sensor a few weeks ago because I was getting misfire on cylinder 4 29d0 and Maf code 2d13 (air mass sensor, rationality) at the same time. I tried to the clean the old maf sensor but that didn't work and it looked like debris was stuck on the needle, so I ended up buying a new maf sensor and the codes disappeared on their own.


I changed the spark plugs (BMW ZR5TPP33S Spark Plug - Bosch 0242145518) on Friday and got a slight rough idle on the first start up but that disappeared. This past sunday the same codes are back again after some spirited highway driving.

I was thinking on changing the coil on cylinder 4 but don't want to thow money at it without solving the problem.


Any help would greatly be appreciated!

Last edited by official; 06-12-2018 at 10:08 AM.
Reply With Quote

Sponsored Links

  #2  
Old 06-12-2018, 10:48 AM
ard ard is offline
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 6,731
ard is on a distinguished road
Switch the coil from #4 to a different location.

Research the fire order and swap it as far away as you can (i.e. Swapping to the adjacent firing position is NOT a good idea)

Any chance you have an air leak? Have you looked at AFR/Fuel trim numbers?
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 07:15 PM.
vBulletin, Copyright 2024, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.