Welcome To V6Mustang.com!

We are the oldest and largest V6 Mustang forum on the internet. If you have any questions about your V6 Mustang or just want to connect with other V6 Mustang owners around the world, you have found the best place on the internet to do that.

Registering is free and easy! Hope to see you on the forums soon!

How to delete EGR?

Discussion in '1994-2004 V6 Mustang Tech' started by JustSpeed7, Feb 7, 2010.

  1. JustSpeed7

    JustSpeed7 J.Rodriguez

    Joined:
    Feb 25, 2007
    Messages:
    2,827
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    Orlando, FL
    Is there any tutorials on how to remove the complete egr assembly?
     
  2. taylor0987

    taylor0987 New Member

    Joined:
    Jul 6, 2004
    Messages:
    6,534
    Likes Received:
    6
    Trophy Points:
    0
    Location:
    Baltimore, MD
    it's easy
    this write up makes it sound more complicated than it is.

    1. order these parts from Ford (dealership or online)

    W705609-S430 cap to block off EGR bung retail $8 discount $5
    E69Z-9D440-A egr delete plate includes gasket retail $9 discount $6
    (it's been a while since I checked the discount prices, but this is the cheapest place http://www.trademotion.com/storefront/index.cfm?action=contactus&siteid=214259 )

    2. get your tune modified to delete EGR
    3. disconnect the EVR and DPFE electrical connectors and tuck them away
    4. remove the EVR and DPFE bracket (along with the DPFE and the EVR and the vacuum tubes)(if you have a 99-00 with AIR emissions then you would leave that bracket there)
    5. unscrew the egr tube from the egr valve
    6. unscrew the egr tube from the header (it is 1 1/16 inches. I used to think that a crow's foot wrench was the best way to do it, but now I feel that getting a stubby 1 1/16 open ended wrench or cutting off the end of a regular length open ended wrench is better.)
    7. unbolt the egr valve and the EGR valve extender thing
    8. put the cap you ordered in #1 on the header
    9. put the plate you ordered in #1 on the opening on the lower intake
    10. put a vacuum cap on the port on the upper intake where you removed the vac line
     
  3. chaoticdismay

    chaoticdismay the rippin and the tearin

    Joined:
    Jun 18, 2004
    Messages:
    24,160
    Likes Received:
    8
    Trophy Points:
    48
    Location:
    on your disco stick
  4. gary0006

    gary0006 New Member

    Joined:
    Feb 7, 2010
    Messages:
    7
    Likes Received:
    0
    Trophy Points:
    0
    Thanks


     
  5. 559v6stanger

    559v6stanger stealth mode

    Joined:
    Sep 20, 2007
    Messages:
    156
    Likes Received:
    0
    Trophy Points:
    26
    Location:
    Central California
    whats the purpose of doing this? performance?
     
  6. taylor0987

    taylor0987 New Member

    Joined:
    Jul 6, 2004
    Messages:
    6,534
    Likes Received:
    6
    Trophy Points:
    0
    Location:
    Baltimore, MD
    there is no direct performance advantage to deleting the EGR.
    the EGR system is not active when the car is at WOT.

    properly functioning EGR saves about 1 MPG in normal driving. therefore deleting will cause the fuel economy to decrease. (EGR decreases detonation. without EGR, the computer cannot advance the timing as much, and with less timing the fuel economy is not as good)

    the main advantage is that it cleans up/declutters the engine bay.

    (an indirect performance advantage on split-port engines is that if you delete EGR, you can get rid of the EGR bungs in the lower intake, and fill and smooth the ports there, but that is a lot more work)
     
  7. atlstang

    atlstang New Member

    Joined:
    Jul 6, 2006
    Messages:
    34
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    kansas
    The purpose of the egr is to lower combustion temps which reduces NOx emissions that usually take place at these higher temps. Which is a far worse greenhouse gas then CO2. The cats will clean it, but by reducing the NOx emissions at part throttle it can extend the life of the cats, which probably isnt a major issue anyway. Basically taking out oxygen as filler and still get good a/f ratios. Most of the driving is at part throttle anyway