Does a bad DPFE sensor cause the engine to stall at idle? - Ford Focus Forum, Ford Focus ST Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace

Go Back   Ford Focus Forum, Ford Focus ST Forum > 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    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Thread Tools Display Modes
Old 03-06-2006, 11:58 AM   #1
Focus Rookie
Join Date: Mar 2005
Fan#: 19945
Location: US
What I Drive: 2000 Focus SE

Posts: 23
FF Reputation: 1 odengiz Good Standing Member
Buy-Sell-Trade Rating: (0)
Does a bad DPFE sensor cause the engine to stall at idle?

I have occasional stallings and very low idle speeds in general, especially while coming to a complete stop.

Spark plugs are brand new. Swapped a brand new idle air controller and nothing changed.

Has anyone had the engine stall during idle due to a failed (or slowly failing) DPFE sensor or the EGR valve switch ??

Any help is appreciated.



odengiz is offline  
    Reply With Quote
Sponsored Links
Old 03-06-2006, 01:11 PM   #2
Join Date: Jul 2005
Fan#: 25457
Location: Ottawa, Ontario
Posts: 100
FF Reputation: 1 Fingers Good Standing Member
Buy-Sell-Trade Rating: (0)
I've been researching a similar issue, and I can suggest with confidence that the culprit is likely your TPS.

The DPFE sensor MAY cause a lean condition where it detects the EGR is not open enough, and opens it further, introducing unmetered exhaust gases into your intake. However, a lean condition would cause an increase in idle speed, not decrease.
Fingers is offline  
    Reply With Quote
Old 03-06-2006, 01:15 PM   #3
LastRites's Avatar
Join Date: May 2004
Fan#: 8452
Location: Chattanooga, TN, TN
What I Drive: 2008 Mica-Black Mazdaspeed 3 Sport

Posts: 7,418
FF Reputation: 18 LastRites Great Standing Member
Buy-Sell-Trade Rating: (0)
Coming from someone that had way too many DPFE issues when he had one I can say that it never once caused an engine stall or in any other way affect idle. I think your problem lies elsewhere

04 SVTF/5
, EAP, Pitch Black (rip)
# 908 of 1079, Born 03/16/2004
" I brake for saucy Pirate wenches"
LastRites is offline  
    Reply With Quote
Old 03-06-2006, 04:08 PM   #4
Captain TMI
whynotthinkwhynot's Avatar
Join Date: Jan 2005
Fan#: 18416
Location: the armpit of TN, Memphis, TN
What I Drive: 05 ZXW; 02 Windstar; 13 C-Max SEL

Posts: 20,128
FF Reputation: 270 whynotthinkwhynot Outstanding Standing Member whynotthinkwhynot Outstanding Standing Member whynotthinkwhynot Outstanding Standing Member
Buy-Sell-Trade Rating: (1)
Fingers is right: stalling at stoplights due to low idle is the classic symptom of a bad TPS.
Be eclectic.
---The Complete How-To Archive--

Moderating everything now, let me know if I can help.

Originally Posted by the user formerly known as ZX3_Chick View Post
You're special aren't you.
whynotthinkwhynot is offline  
    Reply With Quote

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 11:47 PM.

Copyright 2002-2014 All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information

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 or Fiesta ST. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.