Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 10-05-2013, 02:41 PM   #1
Junior Member
Join Date: Oct 2013
Posts: 3
Adjusting Fast Idle

I've read a lot on how to adjust the normal idle via the smart wheel but I'm curious how to adjust the high idle. Mine currently runs at 1200 RPM. From What I gather this seems a bit high. Thx in advance for any info.
2005 Monaco Diplomat Cummins 400 ISL.


Advent 996 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 10-05-2013, 03:06 PM   #2
Senior Member
Skip426's Avatar

Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 11,954
The high idle top speed would be part of the Cummins, Engine Control Module, programing, and re-setting it lower would have to be done at a Cummins facility. ( If possible at all )

99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 10-05-2013, 07:42 PM   #3
Senior Member
Barlow46's Avatar
Join Date: May 2010
Location: East Coast Fl
Posts: 1,101
If you are talking about the high idle that is achieved by using the "smart wheel" cruise control system, then I think 1200 is about right.
2008 Mobile Suites RE3/2004 F450 Chassis Cab
Barlow46 is offline   Reply With Quote
Old 10-05-2013, 07:45 PM   #4
Senior Member
KIX's Avatar

Join Date: Dec 2006
Location: St. Augustine, FL
Posts: 3,579
On our rig with smart wheel th idle will increase to a max of +/- 1200 by "clicking" the SET button and decrease by "clicking" the RES button. But, I agree with others in that the max. is set by the ECM.
'02 Ultimate Advantage 40J Spartan MM - Cummins ISC
2013 Jeep Rubicon JK Unlimited
KIX is offline   Reply With Quote
Old 10-05-2013, 10:39 PM   #5
Junior Member
Join Date: Oct 2013
Posts: 3
Sounds like 1200 is where it should be. Thx,,,
Advent 996 is offline   Reply With Quote
Old 10-05-2013, 10:46 PM   #6
Junior Member
Join Date: Oct 2013
Posts: 3
Sounds like 1200 is where it should be. Thx,,,

Advent 996 is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are Off
Refbacks are Off

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:14 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.