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| 2003 to 2007 6.0L Power Stroke Diesel 6.0L Power Stroke Diesel equipped Super Duty and Excursion. |
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#1
Thu, July 15th, 2010, 10:30 PM
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EGR Delete Q's
For those with egr deletes on their trucks, did anyone have the problem with the boost dropping off when the egr is disabled? I originally had the egr blocked when I got the truck but had to re-enable it when the flash came out that checked for egr operation so I didn't have the boost and power loss issue. Now that I rolled my truck back to the original strat I figured I could go back to the way I had it and block it off. Problem is, even with it rolled back it still throws the egr codes and loses power when it is blocked and the valve is dummied up bolted one of the intake elbow bolts. Maybe there is a trick to it I did before that I can't remember. Any help will be appreciated.
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2004 F-350 XLT 6.0 Diesel 4X4 04/04 Build PHP FICM & Rolled Back ECM/TCM 
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#2
Sat, July 17th, 2010, 11:59 PM
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We have emmisions testing here so I have the EGR blocked, not deleted. I can't say that I noticed a drop in Boost pressure after the mod.
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19 F-350 6.7 Auto 16 F-350 6.7 Auto 05 Excursion 6.0, Auto, PHP Atlas 40 FICM, ARP Studs VXBC6(truck PCM) 00 F-350 7.3, 12 Speed, PHP Gryphon, PHP hydra, DAC3 95 F-Superduty 7.3 DI, Auto, Mechanics Truck 94 F-Superduty 7.3 DI, 5 speed, Flatbed
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#3
Mon, July 19th, 2010, 01:57 AM
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I guess mine is really "blocked" as well. Made a plug for the egr hole and the valve is still hooked up just outside the intake doing nothing. If I can get it figured out I will pull the egr cooler and weld a disc in the inlet then the valve can be where its supposed to be and still doing nothing. With the egr operational boost is 26 pounds WOT empty. With it blocked boost flatlines at 20 pounds and will not go higher. It is a very noticable loss in power on top.
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2004 F-350 XLT 6.0 Diesel 4X4 04/04 Build PHP FICM & Rolled Back ECM/TCM
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#4
Mon, July 19th, 2010, 07:17 AM
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sounds like you may have a leak somewhere.I would start there first.
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 Is in the php shop .. the best way to contact me is by email ......brad@phptune.com looking foward to hearing from and helping all of you. Brad Scott PHP
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#5
Mon, July 19th, 2010, 06:11 PM
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No signs of leakage anywhere. Blocked off egr results in DTC's p0401 and p0404 while only disconnecting the egr connector I get p0401 and p0405. Boost limits to 20psi either way.
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2004 F-350 XLT 6.0 Diesel 4X4 04/04 Build PHP FICM & Rolled Back ECM/TCM
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#6
Mon, July 19th, 2010, 08:12 PM
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well after some homework that i had to do with this problem, and let me say i have seen alot of this same problem...even with tuning with some of the lateter strats the egr valve MUST BE PLUGED UP EVEN IF THE VALVE IS A DUMMY !!!!!!!... if the valve is not plugged up the vvt will not work properly and will not let the turbo spool right..do you have the egr valve plugged up ???
__________________
Is in the php shop .. the best way to contact me is by email ......brad@phptune.com looking foward to hearing from and helping all of you. Brad Scott PHP
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