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Feb 9, 2008 | 05:22 PM

hacki

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Joined: Feb 2008

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I pulled the truck in to replace front end parts but then it would not start i get code for p2623 inj control pressure regulator can someone help any suggestions?

Feb 9, 2008 | 07:21 PM

bismic

Fleet Owner

Joined: Nov 2003

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The ICP has had pigtail and connector problems. Maybe do some wiggling on these to see if it helps.

What year is your truck?

Feb 9, 2008 | 08:10 PM

denman81

Senior User

Joined: Aug 2007

Posts: 469

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From: lake park, MN

Sounds like the ipr (Injector controll pressure regulator) valve went on ya! have fun! They kinda suck because theyre a pain to get to and you need a special wrench to get it on and off. I used a BIG deepwell socket and cut a notch in it for the wire plug to slide in when you slide the socket onto the ipr.

Feb 9, 2008 | 08:26 PM

bismic

Fleet Owner

Joined: Nov 2003

Posts: 27,918

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Keep us informed! Again - what year truck?

edit -

Nevermind - it is a 2004 from your profile.
When asking for help, give these specifics. Don't need to take the time up of those you are getting help from (just a suggestion - you get more posts that way).

Check out the link to the 6.0L Bible below. Looks like Denman is steering you the right direction.

http://dan.prxy.org/Truck/6L_bible_h...l/Page_10.html

Last edited by bismic; Feb 9, 2008 at 09:06 PM.