Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E70) Forum
Bimmer Tool Rental
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 07-25-2019, 01:52 PM
Member
 
Join Date: Mar 2017
Location: Madison, WI
Posts: 32
madbim is on a distinguished road
429A low pressure deviation many new parts I'm at a loss. HELP!

Posting here for additional viability
This is cross posted on NA BMW Diesel Owners

429A low pressure deviation; many new parts I'm at a loss. HELP!

I've been chasing this issue on my 2013 35d for a while now, and cannot seem to figure it out. Currently have 107k miles, new water pump, thermostat, glow plugs, glow plug controller, vacuum res, vacuum controller, pressure converters and vacuum lines, boost hose seals, cleaned MAF.
  • Boost seems low across entire range (although not sure what should be expected?)
  • DDUMD Stage 1 tune sll stock hardware less EGR delete
  • Trans tune from Rod
  • 429A came back on my test run tonight, it sometimes feels laggy between 3000-3700RPM. Also for the first time I noticed 452A which appears to be a DPF related code.
UPDATES
Any help\guidance is appreciated.
Reply With Quote

Sponsored Links

  #2  
Old 07-30-2019, 09:40 AM
Member
 
Join Date: Mar 2017
Location: PA
Posts: 8
d21spike is on a distinguished road
Quote:
Originally Posted by madbim View Post
Posting here for additional viability
This is cross posted on NA BMW Diesel Owners

429A low pressure deviation; many new parts I'm at a loss. HELP!

I've been chasing this issue on my 2013 35d for a while now, and cannot seem to figure it out. Currently have 107k miles, new water pump, thermostat, glow plugs, glow plug controller, vacuum res, vacuum controller, pressure converters and vacuum lines, boost hose seals, cleaned MAF.
  • Boost seems low across entire range (although not sure what should be expected?)
  • DDUMD Stage 1 tune sll stock hardware less EGR delete
  • Trans tune from Rod
  • 429A came back on my test run tonight, it sometimes feels laggy between 3000-3700RPM. Also for the first time I noticed 452A which appears to be a DPF related code.
UPDATES
Any help\guidance is appreciated.
Had this code the other day. Ended up finding the gasket for the egr cooler block off had blown out and exhaust pressure was escaping. Not saying this is your issue but something to look at.

Reply With Quote
  #3  
Old 07-30-2019, 08:28 PM
Member
 
Join Date: Mar 2017
Location: Madison, WI
Posts: 32
madbim is on a distinguished road
Quote:
Originally Posted by d21spike View Post
Had this code the other day. Ended up finding the gasket for the egr cooler block off had blown out and exhaust pressure was escaping. Not saying this is your issue but something to look at.

Interesting, I have the Bimmertune EGR delete. No gasket was provided, but the block off plate is contoured. I'll inspect it again but looked good when I last looked it was good.
Reply With Quote
  #4  
Old 07-31-2019, 11:03 AM
Member
 
Join Date: Mar 2017
Location: PA
Posts: 8
d21spike is on a distinguished road
Quote:
Originally Posted by madbim View Post
Interesting, I have the Bimmertune EGR delete. No gasket was provided, but the block off plate is contoured. I'll inspect it again but looked good when I last looked it was good.
Yeah in your case I'd suspect you would see soot mark going past the edge if there was leakage.
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 10:31 AM.
vBulletin, Copyright 2019, 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.