EGR disable, or delete?
Mountain Pass
Joined: Dec 2005
Posts: 159
Likes: 0
From: Idaho
So with the EGR Coolers and EGR still in place,Will they still act as a wastegate if the EGR is disabled? I know of 2 EGR valves that have failed in my area that were on stock trucks.I haven't heard of any that have failed when disabled.(There are alot of disabled ones around here)
Posting Guru
Joined: Jun 2007
Posts: 1,501
Likes: 2
From: Henderson, NV
the answer is yes even if the computer disables the egr a small amount of gas still flows and would act as a waste gate in some reguard, how reliable i honstly dont know, the only way to stop this is to delete the egr system completly including the egr valve!
Fleet Mechanic
Joined: Oct 2011
Posts: 1,778
Likes: 287
From: Down SOUTH
IF the EGR sooted up OR by leaving the EGR ON ??
I'm not sure what your saying ... Could you please explain.
Elder User
Joined: Jan 2010
Posts: 522
Likes: 0
From: oswego, new york
I think you wouldn't have a problem unless you switched to a tune that runs the egr. If it then were stuck shut due to lack of use it would throw a code or something.
Super Moderator
Joined: Aug 2008
Posts: 37,384
Likes: 1,868
From: Frederick, MD
Not cycling the EGR...getting it stuck could cause the pcm (not superchips) to limit the power of the motor, trying to protect the powertrain.
Not sure how the superchips interacts with the pcm so don't take what I am saying as gospel, consult the superchips people to be sure.
But on a non-tuned truck the EGR is important and a non functioning one can cause problems.
Not sure how the superchips interacts with the pcm so don't take what I am saying as gospel, consult the superchips people to be sure.
But on a non-tuned truck the EGR is important and a non functioning one can cause problems.
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Senior User
Joined: Jul 2006
Posts: 129
Likes: 0
From: Douglasville, Georgia
Just my two cents but from my understanding just shutting the egr off still allows water to flow through the egr cooler, returning heated water to the cooling system, and still leaving open the possibility of an egr cooler failure . I deleted my EGR all together, took at most 4 hours. I've noticed a drop in coolant temp and an increase in mpg. I removed my egr at about 18k miles, I read above someone said a slight amount of soot, humm let me say the amount of soot in the intake elbow blew me away. I replaced the stock elbow with an RPM+ anyway.
Fleet Mechanic
Joined: Oct 2011
Posts: 1,778
Likes: 287
From: Down SOUTH
I'm told the EGR handles turbo overboost.
Did you do the wastegate kit install too ??
Did you buy the EGR delete kit that plugs the coolant hoses at upper & lower ends ??
Did you do the wastegate kit install too ??
Did you buy the EGR delete kit that plugs the coolant hoses at upper & lower ends ??
Posting Guru
Joined: Mar 2006
Posts: 1,275
Likes: 0
From: Long Island, NY
I thought the 210 and below it functions as normal, however anything above and it is completely disabled. I am however, just going by what I was told. Either way, I think I have left the 250 tune in too long without cycling the EGR and I am throwing a code when running anything that does cycle the EGR.