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

Thought It Was Fixed Still Runnin Rich Code 91 Only

  • Thread starter Thread starter joedirt76
  • Start date Start date Mar 4, 2014
Prev
  • 1
  • 2
First Prev 2 of 2

madspeed

Colonel Mustard
Founding Member
Nov 29, 1999
8,914
1,332
204
a van down by the river
Mar 12, 2014
#21
  • Mar 12, 2014
  • #21
Let me guess... No egr, no air pump, no cats. You running dumps too?
 

joedirt76

Member
Feb 11, 2014
35
2
9
rocky point nc
Mar 12, 2014
#22
  • Mar 12, 2014
  • #22
nope nope and nope , not sure what u mean by dumps
 

joedirt76

Member
Feb 11, 2014
35
2
9
rocky point nc
Mar 12, 2014
#23
  • Mar 12, 2014
  • #23
3" exhaust , pro chamber , 1 chamber mufflers
 

madspeed

Colonel Mustard
Founding Member
Nov 29, 1999
8,914
1,332
204
a van down by the river
Mar 12, 2014
#24
  • Mar 12, 2014
  • #24
Dumps are short pipes that exit right behind the mufflers replacing tailpipes. They definitely emit more fumes
 

joedirt76

Member
Feb 11, 2014
35
2
9
rocky point nc
Mar 12, 2014
#25
  • Mar 12, 2014
  • #25
oh, I do have them but not installed have to have them shortened and welded right now they hit the axle so nothing out back end of muffler , if I get wideband and gauge whats correct ratio ? and are you running pro-m80 ? that filters so big im wondering what tube people are using between throttle body and maf the c&l I have def not workn to well
 

madspeed

Colonel Mustard
Founding Member
Nov 29, 1999
8,914
1,332
204
a van down by the river
Mar 12, 2014
#26
  • Mar 12, 2014
  • #26
Im running 14.6 afr at idle once warm which is where you want to be
 

joedirt76

Member
Feb 11, 2014
35
2
9
rocky point nc
Mar 12, 2014
#27
  • Mar 12, 2014
  • #27
10/4
 
Prev
  • 1
  • 2
First Prev 2 of 2
You must log in or register to reply here.

Similar threads

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
781
Fox 5.0 Mustang Tech Nov 9, 2025
Mustang5L5
S
I want to fix my car that is emitting rich black smoke.
  • sands9330014
  • Mar 12, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2 3 4
Replies
71
Views
3K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 19, 2025
sands9330014
S
0
'04 V6 running rich excessively on both banks
  • 04DSGVert
  • Oct 26, 2025
  • SN95 V6 Mustang Tech
Replies
2
Views
330
SN95 V6 Mustang Tech Oct 27, 2025
04DSGVert
0
2
Running very very rich
  • 2esoteric
  • Oct 31, 2025
  • Fox 5.0 Mustang Tech
Replies
4
Views
323
Fox 5.0 Mustang Tech Oct 31, 2025
Noobz347
A
Check Engine codes jumping around
  • azactor
  • Jan 9, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
1
Views
173
1996 - 2004 SN95 Mustang -General/Talk- Jan 10, 2026
gkomo
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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?