EGR crap...p0401
Thread Starter
|
Cross-Country
Joined: Mar 2017
Posts: 79
Likes: 1
EGR crap...p0401
Ok..we all know what this is about....I've taken the EGR valve off and cleaned it...checked the port...seems clear...a new sensor....I've tried to make sure lines r clear...no vacuum leaks that I can find...any suggestions would be sweet.....should I do a new egr because it's bad even after cleaning? Help...I've got till end of month....oh yes...I'm in California.....I know I know
Tuned
Joined: Oct 2020
Posts: 256
Likes: 30
From: San Jose, CA
I feel your pain. I didn't get my emissions fixed in time my registration was for March so I can't even drive right now. I tried cleaning out my EGR months back because its such a pain to get off and it clearly didn't help. Check the solenoid on the top of the valve for electrical but you probably just needed the new valve.
Fleet Owner
Joined: Oct 2005
Posts: 20,786
Likes: 1,751
From: Kentucky
Fleet Owner
Joined: Oct 2005
Posts: 20,786
Likes: 1,751
From: Kentucky
Since the OP is posting a P0401 error that means their truck is OBD-II. Those trucks use a different EGR valve than the OBD-I trucks. Less of them out there so the price goes up accordingly. Error P0401 indicates the EGR gas flow is too low. That signal is derived from two sample tubes in the EGR tube itself. Those two tubes are connected to the DPFE sensor via silicone hoses. If the DPFE sensor tests good then the next step is checking the silicone hoses for cracks. If those are good the next area to look is the EGR tube itself. Could be cracked or the sample tubes are plugged.
Trending Topics
Lead Driver
Joined: Jun 2021
Posts: 5,221
Likes: 805
you have an OBD2 7.5 :O
Can I see a picture of your engine
Can I see a picture of your engine
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
Thedonk
1987 - 1996 F150 & Larger F-Series Trucks
1
Jun 4, 2016 08:03 AM
My Good 'ol 92
1987 - 1996 F150 & Larger F-Series Trucks
5
Aug 14, 2011 12:10 PM