6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Engine Codes P0299 & P0478

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Old

Apr 28, 2010 | 03:43 PM

#1

jdt-scursion

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Joined: Feb 2007

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From: So. Cal

Engine Codes P0299 & P0478

Hey All-my check engine light came on......pulled the following codes: P0299 Turbo Under Boost
P0478 Exhaust Pressure Control Valve High Input
I have 05 Excursion w/Edge-Juice programmer, AEM intake and Banks exhaust....other than that it's bone stock. Any insight & guidance would be appreciated!!!

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Old

Apr 28, 2010 | 04:26 PM

#2

KRDiesel

Cargo Master

Joined: Oct 2005

Posts: 2,599

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From: Farmington NM

First thing I would do is remove the Edge, check your CAC hoses for leaks, clear the codes and see if it comes back.

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Old

Apr 28, 2010 | 04:33 PM

#3

jdt-scursion

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From: So. Cal

KRDiesel-not sure what CAC hoses are?? sorry newbie to diesel talk....

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Old

Apr 28, 2010 | 04:37 PM

#4

jdt-scursion

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From: So. Cal

the silicon hose the connects the turbo to intercooler had a split, just ordered replacements for both ends (dielselsite)......i'll keep you posted, hope this clears up the issue...
Thanks for the guidance!!!! much appreciated

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Old

Apr 28, 2010 | 04:40 PM

#5

KRDiesel

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From: Farmington NM

That is a common place for them to split, It should clear up your issue.

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Old

Apr 28, 2010 | 06:47 PM

#6

cheezit

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From: N. Fort Worth, tx

Club FTE Silver Member

the po478 can set the p0299. check ebp map and baro psi pids koeo value they should all be about 14.2-14.7 psi.

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Old

Apr 28, 2010 | 06:58 PM

#7

69cj

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Joined: Jul 2005

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From: Middle Tn.

Side note; the Edge juice has not been noted for being very good for the Torque-shift tranny.

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Old

Apr 28, 2010 | 07:31 PM

#8

03-6L-X

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Joined: Mar 2009

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From: Oregon

Quote:

Originally Posted by jdt-scursion

the silicon hose the connects the turbo to intercooler had a split, just ordered replacements for both ends (dielselsite)......i'll keep you posted, hope this clears up the issue...
Thanks for the guidance!!!! much appreciated

Make sure you clean everything with brake cleaner to get rid of any oil film. Then take some hair spray and spray a "light mist" on the tube and the hose before you put them back together. Should keep you from having the or a big bang under the hood as you step on it getting on the freeway or going up a hill.

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Old

Apr 28, 2010 | 08:02 PM

#9

gearloose1

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Joined: Jul 2005

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You have the situation under control.

In my case, the issue was a badly plugged EGR.

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Tags

04, 0478, 2006, 73, boost, code, codes, diesel, engine, f250, ford, king, p0299, p0478, ranch

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