Struggling with an EGR code? Look here. - 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 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
Prev Previous Post   Next Post Next
Old 05-12-2013, 05:36 PM   #1
Focus Enthusiast
Join Date: Jun 2012
Fan#: 100389
Location: O'fallon, MO
What I Drive: 2003 Arizona Beige SE 4dr Zetec/ATX

Posts: 182
FF Reputation: 3 Andrews-bad-SE Good Standing Member
Buy-Sell-Trade Rating: (2)
Struggling with an EGR code? Look here.

I had a P0401 (EGR Insufficient Flow) code for a long, LONG time. I've appealed to the help of FF members for a year, and they've all had great ideas and really good input. Lots of great info here!

This thread is first and foremost to thank everyone who helped me along the way. I'm sure you guys know who you are. Tom, iminhell, amc49, and others... all you guys. Thanks!

Here's what was the deal:
I replaced the tube, cleaned the intake side of it, replaced the valve, replaced the DPFE, and checked the vacuum lines....

Here's the kicker... I accidentally stumbled upon the culprit when I was detailing my engine bay. Apparently the vacuum feed for the EGR solenoid (Going from the intake itself to the EGR solenoid) looks tasty to mice.

So for anyone who's struggled with an EGR problem for a long time like I have, check there before spending lots of money and time chasing gremlins!
I feel dumb, because I'm usually good at this type of thing (and have found/fixed several issues just like this on everyone else's cars but mine in the meantime).

Like I said, everyone's help from my first post up till now is appreciated to no end!

Hopefully my learning experience can help someone else.

Grumpy Cat hates your stick figure family.
Finally fixed the EGR!
Andrews-bad-SE is offline  
    Reply With Quote

Bookmarks & Social Networks

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

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

Forum Jump

All times are GMT -5. The time now is 11:50 PM.

Copyright 2002-2014 All Rights Reserved : 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 Audi S3, Ford Fusion and Acura TLX. 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. Challenger Hellcat - Charger Hellcat