Simple EGR delete question
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Senior User
Joined: Mar 2010
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From: Eastern Oregon
Simple EGR delete question
Have read alot on the subject but the one question I can never get answered in my mind anyway is will the delete cause my 2005 PS turbo to go into what some call limp mode. My thoughts are is to use a kit that allows the EGR to still be mounted and plugged in as a dummy. Also if I used a delete kit that does not allow the EGR to be mounted can't it be left plugged in and just set somewhere else and still achieve the same result?
Don't know if the valve detects flow, heat, etc or if the computer and turbo are happy that is just plugged and moving.
Thanks a ton if someone could answer this for me.
Don't know if the valve detects flow, heat, etc or if the computer and turbo are happy that is just plugged and moving.
Thanks a ton if someone could answer this for me.
Lead Driver
Joined: Nov 2007
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The PCM monitors the position of the valve, and also(depending on calibration) will monitor other engine sensors such as MAF, MAP, EBP, and IAT2 to prove flow.
Guys with early trucks used to zip tie a second dummy EGR valve on top of the engine and connect it to the harness to avoid a CEL and limp mode, while the valve installed in the manifold was unplugged(closed) and inoperable.
So, depending on your MY of truck and calibration, it may or may not work. Without more specific info on your truck, not so simple answer.
If you go with an EGR hole welded shut delete kit, you can try leaving the valve tied up and plugged in. If it doesn't work, a custom tune will be in order.
Guys with early trucks used to zip tie a second dummy EGR valve on top of the engine and connect it to the harness to avoid a CEL and limp mode, while the valve installed in the manifold was unplugged(closed) and inoperable.
So, depending on your MY of truck and calibration, it may or may not work. Without more specific info on your truck, not so simple answer.
If you go with an EGR hole welded shut delete kit, you can try leaving the valve tied up and plugged in. If it doesn't work, a custom tune will be in order.
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Senior User
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From: Eastern Oregon
So if I go with a delete kit that still has the egr mounting like the GoGo I should be able to mount my egr with it pluged in and achieve the same results with no cel or turbo issues?
Lead Driver
Joined: Nov 2007
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The existence of an EGR valve in the system is not enough to satisfy some PCM calibrations. For instance, some strategies will look for an increase in intake air temperature(IAT2) when the EGR valve is opened. This proves to the PCM that the valve is operating and EGR gasses are being introduced to the intake tract. If the exhaust gasses aren't flowing because of a delete kit, and there is not an increase in IAT2 when the valve is opened, you can get a CEL(P0401). All depends on MY and calibration of your truck.
If you're interested in a particular kit, call the vendor and see what they say. The kit you mentioned is made by a guy who knows 6.0's very well.
If you're interested in a particular kit, call the vendor and see what they say. The kit you mentioned is made by a guy who knows 6.0's very well.
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Who is the mfg? and contact info?
Senior User
Joined: Feb 2009
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How many miles ago?
What, if any, codes have popped?
Have you gone into limp mode?
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Cargo Master
Joined: Jan 2009
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From: Lubbock
Unplug your egr valve, if it goes into limp mode or throws a check engine light you will need tuning. On 03-05 it is literally hit or miss and there is no definitive awnser for all trucks. 06+ it will though.
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From: Eastern Oregon
Spendy but like the general idea. Also you will have to take care of the up pipe on your own.
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From: PA
When I did my EGR delete, I cut the valve section off of the EGR valve and cleaned it up with a paper disc. I left about 1/4" to 3/8" below the actuator body so that the Gasket would still seat and I reinstalled it. I haven't seen or heard of anyone else doing this, but I thought it was a good idea so I went with it. The EGR valve remains plugged in and the center stem still actuates.
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From: Eastern Oregon
Well there you go. Nice to see another 05 owner. Been trying to get info on how the 05 will behave with any egr delete. The kits are not the worry depends on preference and money. My only concern is if I have to tune the dang thing after the fact to get the turbo to perform as normal. I believe you have to get the supporting MODs done before you chip the 6.0's like the fuel system, filter systems, and failure points. My truck is a early build 05 build date 12/04. I have ran into a couple of other post that say the 05 is ify but perhaps it more about the build date of the 05. A couple of post said they unplugged the egr on a 05 and no codes this makes me hopefull. Your idea sounds like a good one. On another note how did the GDS spring work out for you? What kind of pressure do you run?
Elder User
Joined: Feb 2009
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From: PA
Well there you go. Nice to see another 05 owner. Been trying to get info on how the 05 will behave with any egr delete. The kits are not the worry depends on preference and money. My only concern is if I have to tune the dang thing after the fact to get the turbo to perform as normal. I believe you have to get the supporting MODs done before you chip the 6.0's like the fuel system, filter systems, and failure points. My truck is a early build 05 build date 12/04. I have ran into a couple of other post that say the 05 is ify but perhaps it more about the build date of the 05. A couple of post said they unplugged the egr on a 05 and no codes this makes me hopefull. Your idea sounds like a good one. On another note how did the GDS spring work out for you? What kind of pressure do you run?
I noticed a slight increase in pedal response with the GDS fuel spring, the thing is that the banjo bolts for the fuel lines on the front of the heads have a restrictive valve system, that IMO prevented the full effect of the added presure from the fuel spring. So I gutted them and drilled them out and noticed more power in the 2200 RPM range and alot better pedal response. I don't know exactly what I am pushing for fuel pressure, but I am thinking its in the 85lb range. I know that this is higher than what is recommended, but have seen nothing but good out of my mods and will stick with them.
