1st gear rev hang? - Focus Fanatics
Focus Fanatics Ford Focus Forums
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace



Go Back   Focus Fanatics > Ford Focus Tech Discussions > General Technical Chat

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.

Search This Forum | Image Search | Advanced Search    
FocusFest Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 10-12-2012, 10:23 AM   #1
cbr1100xx
Focus Enthusiast
 
Join Date: Jan 2009
Fan#: 61768
Location: San Diego, United States
What I Drive: 2010 Focus SE-5spd Silver

Posts: 169
FF Reputation: 0 cbr1100xx Newbie
Buy-Sell-Trade Rating: (1)
1st gear rev hang?

I notice when I rev my '10 5sp hard in 1st to maybe 4K rpm and then clutch in for 2nd gear, the rpms sort of hang and don't drop much at all.

Is this normal? It's kind of annoying. I did have a CAI that I took out. The shop said he "reset my computer" after doing it but maybe if I reset the ECU this would get rid of it?

I'm guessing just disconnect the negative terminal of the battery for 20 min or so......

Wondering if anyone else experience this rev hang.


__________________
'10 Silver Focus SE-5spd
'98 Honda CBR1100XX (Blackbird)
cbr1100xx is offline  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 10-12-2012, 12:33 PM   #2
AllCarFan
Focus Enthusiast
 
Join Date: Aug 2012
Fan#: 102583
Location: Atlanta, GA
What I Drive: 2005 Saleen Sonic Blue S121

Posts: 387
FF Reputation: 1 AllCarFan Good Standing Member
Buy-Sell-Trade Rating: (0)
"resetting your ECU" - yeah the shop just disconnected your battery for a bit. I have an 05 that doesnt have a drive by wire, my rpms hang too. COmmon on Fords.
AllCarFan is offline  
    Reply With Quote
Old 10-18-2012, 12:54 PM   #3
Miller88
Focus Addict
 
Join Date: Mar 2010
Fan#: 73790
Location: Syracuse, NY
What I Drive: 2011 Focus SE 5 Speed

Posts: 755
FF Reputation: 5 Miller88 Good Standing Member
Buy-Sell-Trade Rating: (0)
Extremely normal on DBW fords. If I put mine in neutral and cost to a stoplight it's idling at 2500RPM.

Our F350 idles at 1500RPM when sitting still. Dealer has always said it's normal.
__________________
2011 Focus SE 5 Speed 36k - Blue Flame Metallic - Added Rear Swaybar
2000 Jeep Cherokee Sport 115k - Lifted with mud tires.
Miller88 is offline  
    Reply With Quote
Old 10-18-2012, 01:57 PM   #4
PSUrivie
Focus Fanatic
 
PSUrivie's Avatar
 
Join Date: Jul 2009
Fan#: 67329
Location: Elkridge, MD
What I Drive: Boostin in the Mid-A

Posts: 1,973
FF Reputation: 15 PSUrivie Great Standing Member
Buy-Sell-Trade Rating: (8)
Yeah it normal especially with the DBW cars. Another thing to note it that the stock flywheel is pretty heavy and will cause the revs to hang some.
__________________
Finishing up the winter projects.
PSUrivie is offline  
    Reply With Quote
Old 10-18-2012, 09:32 PM   #5
w2s2008
Focus Rookie
 
Join Date: Oct 2012
Fan#: 105033
Location: shullsburg, WI
What I Drive: 2009 silver ses

Posts: 5
FF Reputation: 1 w2s2008 Good Standing Member
Buy-Sell-Trade Rating: (0)
DBW does this to reduce emissions...you get a hydrocarbon spike when the butterfly snaps closed VW has tuners out to minimize this im unaware of any for the focus yet but im new to the focus aftermarket so there very well could be one for them also
w2s2008 is offline  
    Reply With Quote
Old 10-18-2012, 09:42 PM   #6
sleepyboy
FF's Night Security
 
sleepyboy's Avatar
 
Join Date: Nov 2004
Fan#: 15335
Location: SW Houston, TX, United States
What I Drive: 01' Yellow ZX3 euro, 04' ZX5 SVT

Posts: 23,671
FF Reputation: 46 sleepyboy Great Standing Member
Buy-Sell-Trade Rating: (11)
The hanging revs is purely for emissions reasons. The first gen focus did this also, it has nothing to do with DBW cars. Mainly American cars do this but now also some of the foreign cars do this too now.
__________________
I started out with nothing and I still have most of it left

Hatch Nation #15 (Ole' Yeller') & #150 (The SVT)
Moderator for
Technical Chat
Zetec Performance Chat
Southern Fanatics Chat
sleepyboy is offline  
    Reply With Quote
Old 10-19-2012, 09:23 AM   #7
w2s2008
Focus Rookie
 
Join Date: Oct 2012
Fan#: 105033
Location: shullsburg, WI
What I Drive: 2009 silver ses

Posts: 5
FF Reputation: 1 w2s2008 Good Standing Member
Buy-Sell-Trade Rating: (0)
Dive by wire is what does this for emission yes they did it other ways in the past im sure but a 2010 has a "slow" close throttle response strictly do to the drive by wire logic used by the controle mod also why i would have to think someone out there offers a tuner to help with this
w2s2008 is offline  
    Reply With Quote
Old 11-06-2012, 06:18 PM   #8
bones33
Focus Enthusiast
 
Join Date: Oct 2012
Fan#: 105414
Location: Olympia, WA
What I Drive: '05 Silver ST

Posts: 68
FF Reputation: 1 bones33 Good Standing Member
Buy-Sell-Trade Rating: (0)
Anyone? This fast idle, rpm hang business is really getting old. I would love to have a tune that made the engine run correctly. Emissions can't be affected all that much. Hydrocarbon spike? Cats love extra hydrocarbon, that's why they sometimes run rich to keep them lit.

With a tuning device one can always reflash when the time comes.
bones33 is offline  
    Reply With Quote
Old 11-07-2012, 01:37 PM   #9
Miller88
Focus Addict
 
Join Date: Mar 2010
Fan#: 73790
Location: Syracuse, NY
What I Drive: 2011 Focus SE 5 Speed

Posts: 755
FF Reputation: 5 Miller88 Good Standing Member
Buy-Sell-Trade Rating: (0)
Crappy stock programming
__________________
2011 Focus SE 5 Speed 36k - Blue Flame Metallic - Added Rear Swaybar
2000 Jeep Cherokee Sport 115k - Lifted with mud tires.
Miller88 is offline  
    Reply With Quote
Old 11-07-2012, 04:05 PM   #10
sleepyboy
FF's Night Security
 
sleepyboy's Avatar
 
Join Date: Nov 2004
Fan#: 15335
Location: SW Houston, TX, United States
What I Drive: 01' Yellow ZX3 euro, 04' ZX5 SVT

Posts: 23,671
FF Reputation: 46 sleepyboy Great Standing Member
Buy-Sell-Trade Rating: (11)
Quote:
Originally Posted by Miller88 View Post
Crappy stock programming


This
__________________
I started out with nothing and I still have most of it left

Hatch Nation #15 (Ole' Yeller') & #150 (The SVT)
Moderator for
Technical Chat
Zetec Performance Chat
Southern Fanatics Chat
sleepyboy is offline  
    Reply With Quote
Reply

Bookmarks & Social Networks

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 -5. The time now is 11:09 AM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information : Site Map

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX. You can find all Ford Focus related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.