How to delete EGR?

taylor0987

New Member
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
 

gary0006

New Member
Thanks


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

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
 

taylor0987

New Member
whats the purpose of doing this? performance?
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)
 

atlstang

New Member
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
 
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