Back pressure?
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Junior User
Joined: Jun 2004
Posts: 64
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From: torrance california
Back pressure?
My local servicing dealer has requested that I re-install my factory down pipe. They claim it is causing an EGR code to keep coming up? I asked for an explanation and was told that the down pipe throws off the computer because of the increased exhaust flow; and yes my CAT is still in place. Is this accurate?
More Turbo
Joined: Jan 2005
Posts: 589
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From: Mililani, Hawaii
Hey Tim I think I read in another of your posts that you have the Banks exhaust. If this is true then that is not what is causing your problem. I have the Banks exhaust on my truck and use the power PDA to check codes. I have the EGR disconnected and get the codes but once I plug it back in there are no codes at all. Been running it for about 10,000 miles this way.
Postmaster
Joined: Jun 2006
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Originally Posted by Bud in Texas
They're just telling you that because they know you cut the factory down pipe in half to get it out and can't put it back in.
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Elder User
Joined: Sep 2005
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I have yet to run into it... but they're probably telling you that due to this SSM...
19275 2005-2007 F-super Duty/2005 Excursion/2005-2006 E-series 6.0l - P0401/p0402 Caused By Aftermarket Equipment
Some 2005-2007 6.0l Diesel Vehicles May Set Dtc P0401(egr Flow Insufficient Detected) Or P0402(egr Flow Excessive Detected). Before Proceeding With Normal Diagnostics, Inspect The Vehicle For Non-approved Aftermarket Air Induction Systems, Larger Exhaust Systems Eliminating The Catalytic Converter, And/or Performance Enhancing Chips/programmers Which Often Change The Dynamics In The Air Management System. The Use Of Non Approved Aftermarket Air Induction Systems Can Also Contaminate The Hot Wire On The Maf, And Cause Inaccurate Egr Diagnostics And Function. Replacement Of Factory Components Will Not Resolve These Concerns, And Should Not Be Attempted Or Covered Under Warranty. Please Refer To The Warranty And Policy Manual, Section 3, For Warranty Implications Of Repairs Related To Vehicle Modifications.
Effective Date: 07/19/
19275 2005-2007 F-super Duty/2005 Excursion/2005-2006 E-series 6.0l - P0401/p0402 Caused By Aftermarket Equipment
Some 2005-2007 6.0l Diesel Vehicles May Set Dtc P0401(egr Flow Insufficient Detected) Or P0402(egr Flow Excessive Detected). Before Proceeding With Normal Diagnostics, Inspect The Vehicle For Non-approved Aftermarket Air Induction Systems, Larger Exhaust Systems Eliminating The Catalytic Converter, And/or Performance Enhancing Chips/programmers Which Often Change The Dynamics In The Air Management System. The Use Of Non Approved Aftermarket Air Induction Systems Can Also Contaminate The Hot Wire On The Maf, And Cause Inaccurate Egr Diagnostics And Function. Replacement Of Factory Components Will Not Resolve These Concerns, And Should Not Be Attempted Or Covered Under Warranty. Please Refer To The Warranty And Policy Manual, Section 3, For Warranty Implications Of Repairs Related To Vehicle Modifications.
Effective Date: 07/19/
Last edited by CanadaGuy; Aug 25, 2006 at 05:45 PM.
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Thread Starter
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Junior User
Joined: Jun 2004
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From: torrance california
I picked the truck up an hour ago; it seems the other dealer cut an o-ring on the EGR during instalation? No more CEL, I decided not to mention the turbo down pipe again. Thanks every one!
Tim
Tim
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Joined: Jan 2003
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Originally Posted by 6L PWR
I also got mine out in one piece and while sitting on jack stands. Yes, I did say things that I shouldn't have, but it came out fine.
I cutted mine in half since I did not wanted to spend time to unbolt the crossmember! but I managed to get the rear section (over the axle) in one piece by removing to spare tire.
Postmaster
Joined: Jun 2006
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Originally Posted by mulot30th
I assume you removed the transmission cross member to get it out right?
I cutted mine in half since I did not wanted to spend time to unbolt the crossmember! but I managed to get the rear section (over the axle) in one piece by removing to spare tire.
I cutted mine in half since I did not wanted to spend time to unbolt the crossmember! but I managed to get the rear section (over the axle) in one piece by removing to spare tire.
Junior User
Joined: Aug 2006
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06 F250
Ahh the price we pay to get the most of our trucks. The expirence is half the excitement! 
I should have taken the time to remove my old exhaust without cutting but I get a little eager for the finnished product and the fun of completing it. The spare tire removal was a smart idea! 
I should have taken the time to remove my old exhaust without cutting but I get a little eager for the finnished product and the fun of completing it. The spare tire removal was a smart idea!