BMW M3 Forum
BMW M3 Forum BMW M3 Gallery BMW M3 Reviews BMW M3 Social Groups BMW M3 Chat M3Forum Sponsors >>
Loading


Mobile M3forum
Go Back   BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X) > BMW M3 Discussions > E46 M3 (2001-2006) > Coding and Tuning
Tire Rack Buy Winter Tires Now!
Not a member? Register Now!
Register Gallery All Albums Garage Search Today's Posts Mark Forums Read Calendar FAQ

Coding and Tuning Discuss all avenues of coding and tuning here!


Reply
 
Thread Tools Display Modes
Old Tue, May-20-2014, 07:23:05 PM   #1
LAWLence
N15 Design
 
Join Date: Jun 2008
Posts: 1,212
In the garage:
Reputation: 0 LAWLence is on a distinguished road

United States




Default Raising idle RPM

I've installed some stiff engine mounts and would like to get rid of the vibration. Can someone point me in the right direction to raise the idle RPM?
Jump to top LAWLence is offline   Reply With Quote
Sponsored Links
Register now and remove these ads
Old Mon, Jun-02-2014, 02:51:53 PM   #2
SliM3
Registered User
 
SliM3's Avatar
 
Join Date: May 2012
Posts: 2,564
In the garage:
Reputation: 0 SliM3 is on a distinguished road
Location: Atlanta

United States




Default Re: Raising idle RPM

Quote:
Originally Posted by LAWLence View Post
I've installed some stiff engine mounts and would like to get rid of the vibration. Can someone point me in the right direction to raise the idle RPM?
You need to address both the following parameters:
(Note: If you go higher than 950rpm there's another map to adjust)

Code:
Idle Speed Control_TARGET ENGINE SPEED w/AIR READINESS  K_LFR_NSOLL_AC
Current stock value is 870rpm

Code:
Idle Speed Control_TARGET ENGINE SPEED - BASE  KL_LFR_NSOLL_GRUND
Map is based on engine temp to idle speed as follows:

F eng temp /// rpm
-22 /// 1100
68 /// 950
122 /// 870
176 /// 870
__________________

///M3 '06 Carbon Black

DEMOCRACY is two wolves and a lamb voting on what to have for lunch.
LIBERTY is a well-armed lamb contesting the vote.
-Benjamin Franklin


- Checksum corrections for modified DME partial & full bin files

- CSL SMG Engine Parameters (DME) by Slim

- Fuel adaptations explained

- Checksum Verification
Jump to top SliM3 is offline   Reply With Quote
Old Mon, Jun-02-2014, 04:19:08 PM   #3
LAWLence
N15 Design
 
Join Date: Jun 2008
Posts: 1,212
In the garage:
Reputation: 0 LAWLence is on a distinguished road

United States




Default Re: Raising idle RPM

Quote:
Originally Posted by SliM3 View Post
You need to address both the following parameters:
(Note: If you go higher than 950rpm there's another map to adjust)

Code:
Idle Speed Control_TARGET ENGINE SPEED w/AIR READINESS  K_LFR_NSOLL_AC
Current stock value is 870rpm

Code:
Idle Speed Control_TARGET ENGINE SPEED - BASE  KL_LFR_NSOLL_GRUND
Map is based on engine temp to idle speed as follows:

F eng temp /// rpm
-22 /// 1100
68 /// 950
122 /// 870
176 /// 870
I've been using a hex editor to do all of my coding thus far. What program are you using to be able to find the user readable variables?
Jump to top LAWLence is offline   Reply With Quote
Old Mon, Jun-02-2014, 05:04:52 PM   #4
SliM3
Registered User
 
SliM3's Avatar
 
Join Date: May 2012
Posts: 2,564
In the garage:
Reputation: 0 SliM3 is on a distinguished road
Location: Atlanta

United States




Default Re: Raising idle RPM

Quote:
Originally Posted by LAWLence View Post
I've been using a hex editor to do all of my coding thus far. What program are you using to be able to find the user readable variables?
I use TunerPro for all my editing.
Jump to top SliM3 is offline   Reply With Quote
Old Tue, Jun-03-2014, 02:58:02 AM   #5
kaiv
SoCal S54 specialist :P
 
kaiv's Avatar
 
Join Date: Jan 2008
Posts: 9,891
Reputation: 0 kaiv is on a distinguished road
Location: San Diego, CA

France




Default Re: Raising idle RPM

Is there a way to adjust the idle with just a hex editor?
__________________
E46 ///M325i Touring journal



Kaiv's SoCal Feedback! IG: limited.slip
Jump to top kaiv is offline   Reply With Quote
Old Tue, Jun-03-2014, 03:22:29 AM   #6
terraphantm
Moderator
 
Join Date: Dec 2010
Posts: 12,091
In the garage:
Reputation: 11 terraphantm is on a distinguished road
Location: Philadelphia

United States




Default Re: Raising idle RPM

Theoretically you can do everything with a hex editor. You just have to know where everything is. Also much easier to visualize the changes you're making when using a program that organizes data into tables and curves/surfaces
Jump to top terraphantm is offline   Reply With Quote
Old Tue, Jun-03-2014, 03:30:51 AM   #7
kaiv
SoCal S54 specialist :P
 
kaiv's Avatar
 
Join Date: Jan 2008
Posts: 9,891
Reputation: 0 kaiv is on a distinguished road
Location: San Diego, CA

France




Default Re: Raising idle RPM

Quote:
Originally Posted by terraphantm View Post
Theoretically you can do everything with a hex editor. You just have to know where everything is. Also much easier to visualize the changes you're making when using a program that organizes data into tables and curves/surfaces
That's the thing. I don't know which offset/string to modify. You wouldn't happen to know Terra?
__________________
E46 ///M325i Touring journal



Kaiv's SoCal Feedback! IG: limited.slip
Jump to top kaiv is offline   Reply With Quote
Old Tue, Jun-03-2014, 03:34:04 AM   #8
terraphantm
Moderator
 
Join Date: Dec 2010
Posts: 12,091
In the garage:
Reputation: 11 terraphantm is on a distinguished road
Location: Philadelphia

United States




Default Re: Raising idle RPM

What software version are you running?
Jump to top terraphantm is offline   Reply With Quote
Old Tue, Jun-03-2014, 04:00:05 AM   #9
kaiv
SoCal S54 specialist :P
 
kaiv's Avatar
 
Join Date: Jan 2008
Posts: 9,891
Reputation: 0 kaiv is on a distinguished road
Location: San Diego, CA

France




Default Re: Raising idle RPM

Version 2101
__________________
E46 ///M325i Touring journal



Kaiv's SoCal Feedback! IG: limited.slip
Jump to top kaiv is offline   Reply With Quote
Old Tue, Jun-03-2014, 05:41:35 AM   #10
terraphantm
Moderator
 
Join Date: Dec 2010
Posts: 12,091
In the garage:
Reputation: 11 terraphantm is on a distinguished road
Location: Philadelphia

United States




Default Re: Raising idle RPM

Quote:
Originally Posted by kaiv View Post
Version 2101
K_LFR_NSOLL_AC - 0x43CA
K_LFR_NSOLL_GRUND - 0x43E4
Jump to top terraphantm is offline   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

Forum Jump



All times are GMT. The time now is 07:12:43 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
M3Forum.com and M3forum.net is in no way sponsored, endorsed or affiliated by or with BMW NA / BMW AG or any of it's subsidiaries or vendors.
BMW and M3 (E90 M3 | E92 M3 | E93 M3 | E46 M3 | E36 M3 | E30 M3) are registered trademarks of BMW AG.
M3Forum Terms of Service
Copyright 1999-2017 M3Forum.com
Discussing quick question on slave eeprom checkssum in the Coding and Tuning Forum - Discuss all avenues of coding and tuning here! at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)