Code P0401
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Member
Joined: Jul 2010
Posts: 25
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Code P0401
1997 4.6 just did a tune up and truck runs super now...I have had a constatnt check engine light for some time and it's always this code P0401 I have changed the EGR valve hoses EGR tube cleaned eveerything that I know to clean light goes out then in a day or 2 comes back on same code..Doesent bother the way the truck runs but the light bogs the heck out of me...Any advice you guys been great on everything else so point me in the right direction here..
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Joined: Oct 2005
Posts: 25,641
Likes: 19
From: MI
Head over to the Engines forum, here -
https://www.f150online.com/forums/engine-24/
In the search bar to the right, -"Search this Forum" punch in "PO401" just like that and you'll find everything you need to fix the problem.
That's P Letter O Four Zero One. Look around right after you hit the link above. Don't hit "Search", look for "Search This Forum" and type in that DTC. This has been covered over 1000 times, -just in the last month or two.
https://www.f150online.com/forums/engine-24/
In the search bar to the right, -"Search this Forum" punch in "PO401" just like that and you'll find everything you need to fix the problem.
That's P Letter O Four Zero One. Look around right after you hit the link above. Don't hit "Search", look for "Search This Forum" and type in that DTC. This has been covered over 1000 times, -just in the last month or two.
Thread Starter
|
Member
Joined: Jul 2010
Posts: 25
Likes: 0
Head over to the Engines forum, here -
https://www.f150online.com/forums/engine-24/
In the search bar to the right, -"Search this Forum" punch in "PO401" just like that and you'll find everything you need to fix the problem.
That's P Letter O Four Zero One. Look around right after you hit the link above. Don't hit "Search", look for "Search This Forum" and type in that DTC. This has been covered over 1000 times, -just in the last month or two.
https://www.f150online.com/forums/engine-24/
In the search bar to the right, -"Search this Forum" punch in "PO401" just like that and you'll find everything you need to fix the problem.
That's P Letter O Four Zero One. Look around right after you hit the link above. Don't hit "Search", look for "Search This Forum" and type in that DTC. This has been covered over 1000 times, -just in the last month or two.