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

Bypassing Smog pump

  • Thread starter Thread starter CRASH7772
  • Start date Start date May 7, 2004

CRASH7772

Member
Apr 27, 2003
401
1
16
NH
May 7, 2004
#1
  • May 7, 2004
  • #1
If I just bypass the smog pump with a shorter belt and not doing anything else will it cause any problems other than possibly locking up the pump from not using it over a peroid of time? Will it pop any codes in the computer?
 

Kdubslugga

Active Member
Jun 7, 2003
1,515
3
38
Akron, OH
May 7, 2004
#2
  • May 7, 2004
  • #2
It wont cause any problems with your computer, it could hurt your cats if you have em, and it will lock up if not used for awhile, thats what mine did, but its gone now anyways. Just occasianlly turn the pump so it wont lock up though
 

CRASH7772

Member
Apr 27, 2003
401
1
16
NH
May 7, 2004
#3
  • May 7, 2004
  • #3
Check sig.....installing Pro-Chamber soon...
 

89MustangGX

I have nothing productive to add!
Jul 3, 2001
10,262
1
0
Mill Creek, WA
May 8, 2004
#4
  • May 8, 2004
  • #4
It will store codes but not throw a light. No other problems.
 

The Shape

Founding Member
Jan 11, 2002
2,224
8
49
East ARKANSAS Delta
May 8, 2004
#5
  • May 8, 2004
  • #5
A friend of mines car stores codes for the smog stuff being gone , but no check engine light just as 89MustangGX said. Mine doesn't even store a code though. I am wondering if that is because I left the solenoids on the back of the strut tower and just capped them off instead of removing them . The only thing I get is code 11 all clear.
 

90mustangGT

I felt sorry for girls because
Founding Member
Jan 15, 2002
2,773
17
89
Dallas, GA
May 8, 2004
#6
  • May 8, 2004
  • #6
Why just bypass it, why not delete it. I did my emmisions test with and without the air pump, made no difference. The air pump / smog pump is just an example of 1980's emmisions technology. The air pump has nothing to do with your EGR, now that you want to keep if you have to pass emmisions. The air pump pushes air into the cats and into the exaust ports in the head. Who cares how it works, it's junk.

The way I deleted it is two bolts the pump comes out, remove the vaccume lines and plug them, then two 1/2" bolts on the back of the head removed, cut off the pipes and bolt the flanges on backwards to block the back of the head.
 
You must log in or register to reply here.

Similar threads

S
Engine Belt routing with supercharger and smog/ac/ps delete
  • Steve6482
  • Jul 15, 2026
  • Fox 5.0 Mustang Tech
Replies
0
Views
143
Fox 5.0 Mustang Tech Jul 15, 2026
Steve6482
S
B
Idler pulley as substitute for Power Steering Pump ?
  • Bhenders
  • Jul 15, 2026
  • Other Auto Tech
Replies
5
Views
324
Other Auto Tech Jul 16, 2026
LILCBRA
Electrical problem plug in the drivers kick panel
  • Mindseye007
  • Aug 16, 2026
  • Fox 5.0 Mustang Tech
Replies
3
Views
220
Fox 5.0 Mustang Tech Aug 16, 2026
Mindseye007
Fox Help my smog pump :poo: the bed.
  • nickyb
  • Aug 26, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
411
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Aug 27, 2025
nickyb
Smog pump bypass?
  • PvolkStang
  • Apr 12, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
719
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Aug 26, 2025
nickyb
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?