Why you need to do an EGR delete

Reply Subscribe

Thread Tools

Search this Thread

Aug 30, 2014, 07:30 AM

#46

wingless

Evolved Member

iTrader: (15)

Join Date: Oct 2003

Location: Boston

Posts: 1,221

Likes: 1

Received 6 Likes on 5 Posts

Quote:

Originally Posted by XSilverJ

Only if you screw up the ECU part of getting inspected and get sent to a MAC station

https://www.evolutionm.net/forums/no...refer-mac.html

This thread has some good info on what we went through in MA. Maybe they eased up a bit since. We where all heavily modded on EDM V7 in 2011-12 when suddenly that happened... and we pretty much all got to know the MAC folks.

Reply Like

Sep 2, 2014, 04:09 PM

#47

silver9mr

Evolved Member

iTrader: (8)

Join Date: Jan 2008

Location: lowell,MA

Posts: 1,349

Likes: 0

Received 1 Like on 1 Post

Quote:

Originally Posted by XSilverJ

False.. I've never had an inspector look for any of that on any car. Only if you screw up the ECU part of getting inspected and get sent to a MAC station after a few attempts will you need it there.

Isnt the EGR something that is looked for thought the obd-2 port during the inspection? I know for my car i have the force inspection path for the rear o2 sensor for my car and have had no issues with MAC. But im not sure how it works with the EGR and the sensor for inspections.

Reply Like

Sep 3, 2014, 09:56 AM

#48

wingless

Evolved Member

iTrader: (15)

Join Date: Oct 2003

Location: Boston

Posts: 1,221

Likes: 1

Received 6 Likes on 5 Posts

Quote:

Originally Posted by silver9mr

He is sort of right in that if you have the periphery bits set "correctly" it should pass the regular test OBD2 at a service station. However we all went from passing (forced) to "randomly selected" for MAC evaluation and once there, they will actually log EGR duty cycle. I'm guessing he probably didn't have a modified 8-9 in 2011 or got just lucky as we didn't even know what to look out for.

Reply Like

Sep 3, 2014, 10:15 AM

#49

heel2toe

Evolved Member

iTrader: (41)

Join Date: Jul 2007

Location: Massachusetts

Posts: 4,690

Likes: 8

Received 126 Likes on 121 Posts

FWIW I was referred over the the MAC center a couple years ago and it wasnt due to the force pass but rather that they were keeping logs of what ROM ID I had and it had changed through the years.

Reply Like

Sep 3, 2014, 03:04 PM

#50

Touge86

Newbie

Join Date: May 2013

Location: CA

Posts: 35

Likes: 0

Received 0 Likes on 0 Posts

Order placed. Looking forward to ditching the EGR.

Reply Like

Sep 3, 2014, 08:58 PM

#51

Craig King

Evolved Member

iTrader: (11)

Join Date: Jun 2008

Location: NW Pennsylvania

Posts: 1,493

Likes: 0

Received 0 Likes on 0 Posts

Perhaps this was already covered, but if I have already removed the EGR system, would this sometimes cause a burning oil smell from my exhaust? Or occasionally burning oil?

Reply Like

Sep 4, 2014, 08:18 AM

#52

JohnBradley

Evolved Member

Thread Starter

iTrader: (30)

Join Date: Jan 2004

Location: Northwest

Posts: 11,396

Likes: 34

Received 64 Likes on 48 Posts

Quote:

Originally Posted by Craig King

Perhaps this was already covered, but if I have already removed the EGR system, would this sometimes cause a burning oil smell from my exhaust? Or occasionally burning oil?

Not that I have encountered. I would start looking for oil leaks.

Reply Like

Sep 12, 2014, 11:21 AM

#53

iiEVO

Newbie

Join Date: May 2013

Location: OKC

Posts: 20

Likes: 0

Received 0 Likes on 0 Posts

is the cel it would throw purely emissions related? looking to do this but don't have a way to turn off the cel. Would leaving the cel on untill i can turn it off affect performance or results?

Reply Like

Sep 12, 2014, 11:26 AM

#54

JohnBradley

Evolved Member

Thread Starter

iTrader: (30)

Join Date: Jan 2004

Location: Northwest

Posts: 11,396

Likes: 34

Received 64 Likes on 48 Posts

The CEL will be for insufficient EGR flow. It shouldnt affect performance if the car is tuned right to start with. Been a long time since I tried it though so I cant say 100%.

Reply Like

Sep 12, 2014, 11:41 AM

#55

iiEVO

Newbie

Join Date: May 2013

Location: OKC

Posts: 20

Likes: 0

Received 0 Likes on 0 Posts

Gotcha thanks, anyone possibly chime in that has done this without being able to turn off cel?

Reply Like

Sep 18, 2014, 03:43 PM

#56

davecamp07

Newbie

iTrader: (5)

Join Date: Aug 2011

Location: north NJ

Posts: 15

Likes: 0

Received 0 Likes on 0 Posts

didnt know it made that much of a difference egr delete it is

Reply Like

Sep 24, 2014, 08:56 AM

#57

JohnBradley

Evolved Member

Thread Starter

iTrader: (30)

Join Date: Jan 2004

Location: Northwest

Posts: 11,396

Likes: 34

Received 64 Likes on 48 Posts

Quote:

Originally Posted by iiEVO

Gotcha thanks, anyone possibly chime in that has done this without being able to turn off cel?

If you cant retune the car or it wasnt taken care of originally in your tune, it will throw a CEL.

Reply Like

Sep 24, 2014, 12:01 PM

#58

TheBoz

Evolved Member

iTrader: (9)

Join Date: Jan 2005

Location: Space time

Posts: 1,278

Likes: 2

Received 14 Likes on 13 Posts

My first EGR block off plate was an aluminum can trimmed to act as a gasket (GHETTO). I finally just welded the EGR ports on the manifold when it was off the car. 25 bucks to not deal with the BS is worth it to me

Reply Like

Dec 8, 2014, 03:58 PM

#59

JohnBradley

Evolved Member

Thread Starter

iTrader: (30)

Join Date: Jan 2004

Location: Northwest

Posts: 11,396

Likes: 34

Received 64 Likes on 48 Posts

A reason we thought of recently to consider an EGR delete stems from design of flow for the system. All of the exhaust flows right at the idle motor. Much like the DSMs that are known for killing idle motors, the Evos are starting to do it as well. This is in part because the EGR is pointed right at it. It also puts a lot of carbon in the throttle body and can cause sticking issues.

Reply Like