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 Today's Posts New Posts

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
  #11  
Old 07-13-2015, 05:23 PM
djbock's Avatar
Member
 
Join Date: Feb 2006
Location: I O WAY
Posts: 624
djbock is on a distinguished road
Reviving an old thread as I am still experiencing this problem. Still don't drive it as much as it is the wifes daily driver, but had it for the weekend for a road trip and was able to monitor engine info along the way.

Via accelerator, 75 mph flat interstate, RPMs stayed constant 1900 RPM +/- 10, fuel rail pressure constant ~ 2000 psi, MAF cfm remained constant.

Via cruise control, 75 mph flat interstate, RPMs stayed constant 1900 RPM +/- 10, fuel rail pressure would fluctuate between be at ~2000 psi then drop to 1500 psi up to 2400 psi during periods of felt surging. MAF cfm would also fluctuate at the same time.

So it has to be tied to the cruise control system some how. Anyone know exactly how the system works and/or what could be causing the issue?
__________________
2011 X5 35i Space Gray/Black Nevada Leather w Dark Bamboo Trim
Convenience Pkg/Running Boards/Cold Weather Pkg/Comfort Access
3rd Row Seating/20% Tint/Style 215 wrapped with Toyo Proxes ST II/ LUX v4

2001 X5 4.4i TiAG/Grey Leather-Retired
djbock's Custom X Page!

Last edited by djbock; 07-13-2015 at 07:52 PM.
Reply With Quote

Sponsored Links

  #12  
Old 07-13-2015, 06:35 PM
ard ard is offline
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 6,765
ard is on a distinguished road
For S & G

Dynamic Cruise Control, page 6:
http://www.bmwmotorsports.org/pdf/e7...%20Systems.pdf
Reply With Quote
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
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 03:44 AM.
vBulletin, Copyright 2026, 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.