• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

EGR question

  • Thread starter Thread starter Andres2882
  • Start date Start date Feb 22, 2006
A

Andres2882

New Member
Jan 29, 2004
316
0
0
Feb 22, 2006
#1
  • Feb 22, 2006
  • #1
I've read through a good many of the EGR posts but had a few specific questions. My car has no smog pump and since I'm putting a new longblock into the car, I was considering removing as much clutter as possible. Without a pump, is my EGR system working anyway? Previously i had capped off the piping that runs from the back of the heads forward. Any help would be appreciated.
 

vristang

15 Year Member
Mar 31, 2005
4,933
101
124
Seattle
Feb 22, 2006
#2
  • Feb 22, 2006
  • #2
The egr routes through the stock lower/upper intake manifold the pipe in the back of the block is for the smog pump.
The air pump is completely separate from the EGR. EGR just adds exhaust gas to the intake mixture. The smog pump adds fresh air to the exhaust, helping the cats do their job.
I don't recommend removing the egr. There is no performance gain, and there is the possibility of drivability issues at part throttle. If you do remove the egr it would be best to disable the function in the computer, but this requires modifying the program in the computer itself.
 
A

Andres2882

New Member
Jan 29, 2004
316
0
0
Feb 22, 2006
#3
  • Feb 22, 2006
  • #3
OK, that helps a lot. So I can block off the back of heads and remove that pipe and still retain the EGR, that is just what I wanted to hear. Thanks.
 
You must log in or register to reply here.

Similar threads

9
Engine Donor '00 Mountaineer meet '91 Fox
  • 91firecracker
  • May 11, 2026
  • Fox 5.0 Mustang Tech
  • 2 3
Replies
41
Views
515
Fox 5.0 Mustang Tech May 28, 2026
91firecracker
9
S
Fuel ‘88 GT Runs Rich Cold — Fixes Itself When I Unplug Sensors (ECT, MAF, O2, etc.)
  • Sufarry
  • Nov 6, 2025
  • Fox 5.0 Mustang Tech
Replies
12
Views
709
Fox 5.0 Mustang Tech Nov 9, 2025
Mustang5L5
L
Exhaust 95 gt pypes catted x pipe
  • Lx5.0fiend
  • Aug 22, 2025
  • 1994 - 1995 Specific Tech
Replies
5
Views
282
1994 - 1995 Specific Tech Sep 18, 2025
revhead347
2
Running very very rich
  • 2esoteric
  • Oct 31, 2025
  • Fox 5.0 Mustang Tech
Replies
4
Views
304
Fox 5.0 Mustang Tech Oct 31, 2025
Noobz347
S
Cali Members, Get in Here! - Smog issue with possible error on 2007 Shelby GT Emissions label failed due to EGR
  • saldua
  • Mar 30, 2025
  • 2005 - 2014 S-197 Mustang -General/Talk-
  • 2
Replies
26
Views
1K
2005 - 2014 S-197 Mustang -General/Talk- Apr 1, 2025
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?