Duratec EGR function when electrically disconnected - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus First Generation > DURATEC Performance (2003-2007)

DURATEC Performance (2003-2007) The place to chat about any Duratec 23, 23E, and 20 engine performance, tuning and exhaust related upgrades.

Search This Forum | Image Search | Advanced Search    
FocusFest

Like Tree2Likes
Reply




 
LinkBack Thread Tools Display Modes
Old 04-29-2015, 12:01 PM   #1
Focus Fanatic
 
Marde's Avatar
 
Join Date: Jun 2013
Fan#: 115991
Location: Mesa, AZ
What I Drive: 2004 ZTW PZEV 2.3 ATX

Posts: 4,239
Points 14,525, Level 78
Points: 14,525, Level: 78 Points: 14,525, Level: 78 Points: 14,525, Level: 78
Level Up 19% Completed
Level up: 19% Level up: 19% Level up: 19%
Forum Activity 42%
Activity: 42% Activity: 42% Activity: 42%
FF Reputation: 47 Marde Great Standing Member
Buy-Sell-Trade Rating: (0)
Duratec EGR function when electrically disconnected

Hey guys.

If I disconnect the electrical connector at my EGR, do you think it would go full Open or full Closed?

Looking for a way to temporally disable EGR, and have it stay Closed.

Note: yes, I expect it will throw a code.


__________________
Always check your fluid levels, -then check your car.
Marde is online now  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 04-29-2015, 12:31 PM   #2
Focus Enthusiast
 
spacemanspif's Avatar
 
Join Date: Sep 2014
Fan#: 188025
Location: Swedesboro, NJ
What I Drive: 2007 ZXW SES

Posts: 411
Points 1,089, Level 17
Points: 1,089, Level: 17 Points: 1,089, Level: 17 Points: 1,089, Level: 17
Level Up 89% Completed
Level up: 89% Level up: 89% Level up: 89%
Forum Activity 17%
Activity: 17% Activity: 17% Activity: 17%
FF Reputation: 3 spacemanspif Good Standing Member
Buy-Sell-Trade Rating: (1)
I would think it would stay closed. On my old Saturn we used to pull off the valve and put a piece of sheet metal (beer can) under the valve. Blocked the flow for testing AND prevented a code. The Fofo EGR is a different animal though...I think...

Edit: I think you could get away with the beer can method on the Fofo if you needed to (pic below). Might be a good idea to take it off and clean it out as it could be more the source of your problem than it's functionality. Same goes for your throttlebody; if there is gunk on the back of it clean it off using a rag while holding it open or pull the TB and do a more thorough job.

__________________
-Mike
1987 Monte Carlo SS - 5.3/4L80E - 13.67 @ 103.7
2007 Focus ZX5 - 103K miles
2007 Focus Estate - 183K miles - 35mpg - Scrapped
1995 Saturn SL2 - 258K miles - Sold
spacemanspif is offline  
    Reply With Quote Quick reply to this message
Old 04-29-2015, 01:41 PM   #3
Focus Fanatic
 
Marde's Avatar
 
Join Date: Jun 2013
Fan#: 115991
Location: Mesa, AZ
What I Drive: 2004 ZTW PZEV 2.3 ATX

Posts: 4,239
Points 14,525, Level 78
Points: 14,525, Level: 78 Points: 14,525, Level: 78 Points: 14,525, Level: 78
Level Up 19% Completed
Level up: 19% Level up: 19% Level up: 19%
Forum Activity 42%
Activity: 42% Activity: 42% Activity: 42%
FF Reputation: 47 Marde Great Standing Member
Buy-Sell-Trade Rating: (0)
Thanks Mike.

TB is clean/was clean last year, will check it again next few days/weeks.

Great idea on EGR internal cleaning. Chances are no human has been inside there since 2003. Cool pic above. After cleaning, might do the beer can trick as things progress; do it for a day or two as a test.... thanks again.

Anyone here seen EGR valve get gunked-up and cleaning fixed it, or seemed to fix something? When I had my IM off, I saw the inside of the EGR tube and it was dry as a bone, suggesting my EGR gasses have no oily residue at all. Also, where EGR tube meets the inside of IM, it was totally dry.

My guess was EGR would go full Open if electrically disconnected. IF I had a EGR mod/delete blanking plate mounted, I could watch it operate and answer my own question fer sure.

BTW this thread is semi-related to two others:
http://www.focusfanatics.com/forum/g...misfire-4.html

http://www.focusfanatics.com/forum/d...gas-pedal.html
__________________
Always check your fluid levels, -then check your car.
Marde is online now  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 04-29-2015, 03:27 PM   #4
Focus Fanatic
 
Marde's Avatar
 
Join Date: Jun 2013
Fan#: 115991
Location: Mesa, AZ
What I Drive: 2004 ZTW PZEV 2.3 ATX

Posts: 4,239
Points 14,525, Level 78
Points: 14,525, Level: 78 Points: 14,525, Level: 78 Points: 14,525, Level: 78
Level Up 19% Completed
Level up: 19% Level up: 19% Level up: 19%
Forum Activity 42%
Activity: 42% Activity: 42% Activity: 42%
FF Reputation: 47 Marde Great Standing Member
Buy-Sell-Trade Rating: (0)
Hey Mike, I think your EGR picture just answered my question. I think I can see the (spring loaded?) plunger resting in the down position (is fully Open) so it must do this/probably does this when no power is applied. I will confirm this on mine when I clean it.

Edit: Wait, i think my eyes are deceiving me. Now I am unsure. Sorry.
__________________
Always check your fluid levels, -then check your car.
Marde is online now  
    Reply With Quote Quick reply to this message
Old 04-29-2015, 04:48 PM   #5
Focus Enthusiast
 
spacemanspif's Avatar
 
Join Date: Sep 2014
Fan#: 188025
Location: Swedesboro, NJ
What I Drive: 2007 ZXW SES

Posts: 411
Points 1,089, Level 17
Points: 1,089, Level: 17 Points: 1,089, Level: 17 Points: 1,089, Level: 17
Level Up 89% Completed
Level up: 89% Level up: 89% Level up: 89%
Forum Activity 17%
Activity: 17% Activity: 17% Activity: 17%
FF Reputation: 3 spacemanspif Good Standing Member
Buy-Sell-Trade Rating: (1)
Lol stop speculating and pick up a wrench. If you can't get to it now; stop thinking about it. If you over think things you eventually make yourself believe that a solar flare is causing your problems lol

Edit: plunger down would be closed, wouldn't it?? The plunger is what blocks the connection between the 2 big holes, 1 leading to the exhaust and the other into the intake (or wherever the engine inhales the EGR gasses)

Last edited by spacemanspif; 04-29-2015 at 04:50 PM.
spacemanspif is offline  
    Reply With Quote Quick reply to this message
Old 04-29-2015, 08:15 PM   #6
Old Phart
 
sailor's Avatar
 
Join Date: Jun 2008
Fan#: 57268
Location: Lockport, NY
What I Drive: 2013 Black 5-spd SE Hatch

Posts: 44,596
Points 33,746, Level 100
Points: 33,746, Level: 100 Points: 33,746, Level: 100 Points: 33,746, Level: 100
Level Up 0% Completed
Level up: 0% Level up: 0% Level up: 0%
Forum Activity 21%
Activity: 21% Activity: 21% Activity: 21%
FF Reputation: 135 sailor Excellent Standing Member sailor Excellent Standing Member
Buy-Sell-Trade Rating: (0)
Don't forget about coolant leak when removing it.

Coolant flows from head through small hole into EGR, then out through the attached hose (see tube in picture).

I'd bet on default closed, typical for EGR's & lets the engine run best if it fails.
__________________
"Rubber Side Down"

S.R. #275
Focus Takeover #003 / Tarbo Fan #003
sailor is offline  
    Reply With Quote Quick reply to this message
Old 04-30-2015, 06:55 AM   #7
Focus Enthusiast
 
spacemanspif's Avatar
 
Join Date: Sep 2014
Fan#: 188025
Location: Swedesboro, NJ
What I Drive: 2007 ZXW SES

Posts: 411
Points 1,089, Level 17
Points: 1,089, Level: 17 Points: 1,089, Level: 17 Points: 1,089, Level: 17
Level Up 89% Completed
Level up: 89% Level up: 89% Level up: 89%
Forum Activity 17%
Activity: 17% Activity: 17% Activity: 17%
FF Reputation: 3 spacemanspif Good Standing Member
Buy-Sell-Trade Rating: (1)
Thanks, sailor; was wondering what that tube was for. Makes a block a little more difficult and probably not worth the effort...
spacemanspif is offline  
    Reply With Quote Quick reply to this message
Old 04-30-2015, 11:14 AM   #8
Focus Fanatic
 
Marde's Avatar
 
Join Date: Jun 2013
Fan#: 115991
Location: Mesa, AZ
What I Drive: 2004 ZTW PZEV 2.3 ATX

Posts: 4,239
Points 14,525, Level 78
Points: 14,525, Level: 78 Points: 14,525, Level: 78 Points: 14,525, Level: 78
Level Up 19% Completed
Level up: 19% Level up: 19% Level up: 19%
Forum Activity 42%
Activity: 42% Activity: 42% Activity: 42%
FF Reputation: 47 Marde Great Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by spacemanspif View Post
Lol stop speculating and pick up a wrench. If you can't get to it now; stop thinking about it. If you over think things you eventually make yourself believe that a solar flare is causing your problems lol
Fine. Have it your way. I will take solar flares off my list. I was curious about what it did while the engine was running, and what it would do if I pulled the plug. This is not a case of me asking un-necessary or un-natural questions or being lazy. The question evolved and after seeing your pic THEN IT HIT ME that I could just pull the EGR off the car and look to see if it is open or closed when at rest... and this would answer my question. BTW, what's a wrench?

Quote:
Originally Posted by spacemanspif View Post
Edit: plunger down would be closed, wouldn't it?? The plunger is what blocks the connection between the 2 big holes, 1 leading to the exhaust and the other into the intake (or wherever the engine inhales the EGR gasses)
For whatever reason, you and I are not seeing it the same way.
Plunger down = the two cavities are connected = open.
Plunger up = plunger is in the middle = the two cavities are not connected = closed.

Quote:
Originally Posted by sailor View Post
Coolant flows from head through small hole into EGR, then out through the attached hose (see tube in picture).
Face-palm! I knew about the coolant, but forgot about it when considering blocking the exhaust ports with beer can idea. Pretty sure it would leak coolant + might mess-up the seal/gasket if I did it, so that idea is scrapped.

I will post back after cleaning it and confirm which state the valve is in when at rest.
__________________
Always check your fluid levels, -then check your car.
Marde is online now  
    Reply With Quote Quick reply to this message
Old 04-30-2015, 07:18 PM   #9
Focus Fanatic
 
Marde's Avatar
 
Join Date: Jun 2013
Fan#: 115991
Location: Mesa, AZ
What I Drive: 2004 ZTW PZEV 2.3 ATX

Posts: 4,239
Points 14,525, Level 78
Points: 14,525, Level: 78 Points: 14,525, Level: 78 Points: 14,525, Level: 78
Level Up 19% Completed
Level up: 19% Level up: 19% Level up: 19%
Forum Activity 42%
Activity: 42% Activity: 42% Activity: 42%
FF Reputation: 47 Marde Great Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Marde View Post

If I disconnect the electrical connector at my EGR, do you think it would go full Open or full Closed?
Local autozone had this EGR on the shelf. Duralast box, not an OEM part. Looked at it, here is the answer...

With no power, the plunger is spring-loaded Closed. Good guess sailor.

I was able to get a fingernail on it, and move the plunger, which gave me an idea of how much force/drag a new one has. The spring is not weak nor hard. Hope mine has similar behavior once I get around to cleaning it.

Also, what I said earlier is correct...
Plunger up = plunger is in the middle = the two cavities are not connected = closed.

Because of this news, plans to clean my EGR are postponed. When I want to eliminate EGR gases from going into my IM, I will just pull the connector off... assuming my EGR is not stuck open (return spring not working!?) this will work. Will do this temporarily as part of my troubleshooting process regarding engine performance problems in another thread.

Now I am waiting for our standard hot days (100-105) that will better help me reproduce the bog and stutter symptoms. Thanks for your help gents.
__________________
Always check your fluid levels, -then check your car.
Marde is online now  
    Reply With Quote Quick reply to this message
Old 05-01-2015, 12:28 AM   #10
w/ my magic bag
 
felixthecat's Avatar
 
Join Date: Nov 2010
Fan#: 80663
Location: The Jet city, WA
What I Drive: '05 Silver Sport Technologies

Posts: 28,421
Points 33,055, Level 100
Points: 33,055, Level: 100 Points: 33,055, Level: 100 Points: 33,055, Level: 100
Level Up 0% Completed
Level up: 0% Level up: 0% Level up: 0%
Forum Activity 100%
Activity: 100% Activity: 100% Activity: 100%
FF Reputation: 87 felixthecat Excellent Standing Member
Buy-Sell-Trade Rating: (0)
I'd just remove it all together & replace it w/ a plate. Use a hose connector to connect the heater hoses together.
__________________
Introduce Mr. Torsen to the mix
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Bigger brakes then you- D23 crew- D-Tech- Sedan Revolution= #131
felixthecat is offline  
    Reply With Quote Quick reply to this message
Reply

Bookmarks & Social Networks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
What I Drive
Year, color, and model of your car. Example: 2003 Focus Centennial Edition Sedan
Name
Your real name.
City
State
Country
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 06:01 AM.


Copyright 2002-2015 FocusFanatics.com. All Rights Reserved : : 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 Mazda CX-3, Audi S3, Mazda MX-5 Miata and Acura TLX. You can find all Ford Focus, Focus ST and Focus RS related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. If you own other makes have a look at Challenger Hellcat Forum, Charger Hellcat Forum, Cadillac ATS-V Forum, Cadillac CTS-V Forum, Lexus RC-F Forum, Lexus GS-F Forum, Mercedes GLA Forum, Mercedes GLE Forum and Volvo XC90 Forum.




 

Search Engine Optimization by vBSEO 3.6.1