Go Back   EcoModder Forum > EcoModding > General Efficiency Discussion
Register Now
 Register Now

Reply  Post New Thread
Submit Tools LinkBack Thread Tools
Old 11-29-2017, 02:24 AM   #1 (permalink)
EcoModding Lurker
Join Date: Nov 2017
Location: HN
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
coast down idle?

Ok having a senior moment. Is it called a coast down idle when you coast with clutch in but engine slowly drops idle? OBD I system, can this be changed? Even fully warmed up idle only drops to about 850 where if not rolling and after about 30 seconds it will drop to about 600. I know it is there for ease in engaging the clutch again but I can handle that.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

Old 11-30-2017, 05:29 AM   #2 (permalink)
Custom User Title
Gasoline Fumes's Avatar
Join Date: Oct 2009
Location: New York State
Posts: 1,134

Nut Wagon - '91 Honda Civic Wagon DX
Team Honda
90 day: 67.84 mpg (US)

CRXFi - '88 Honda CRX XFi

Untitled Insight - '00 Honda Insight
Team Honda
Gen-1 Insights
Thanks: 548
Thanked 496 Times in 284 Posts
If it only idles high when moving, all you need to do is make the ECU think the car isn't moving.
Best tank with the Honda so far is 81 MPG.
  Reply With Quote
Old 11-30-2017, 08:48 AM   #3 (permalink)
Master EcoModder
Ecky's Avatar
Join Date: Dec 2011
Location: Vermont
Posts: 3,117

Gaptooth - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 55.63 mpg (US)

Such Fit - '07 Honda Fit Sport
90 day: 41.27 mpg (US)

Velomobile - '13 Sun Seeker EZ-TAD SX
Last 3: 2142.86 mpg (US)
Thanks: 1,077
Thanked 1,202 Times in 774 Posts
Originally Posted by Gasoline Fumes View Post
If it only idles high when moving, all you need to do is make the ECU think the car isn't moving.
Indeed, Natalya has a module for the Insight which can, on demand, feed the ECU a ~1mph signal, which could in theory allow for low idle while coasting. Our cars shut the engines off entirely in those cases though.

  Reply With Quote
Reply  Post New Thread

Thread Tools

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com