• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

timing and fp?

  • Thread starter Thread starter 94gtslow
  • Start date Start date Dec 11, 2003
9

94gtslow

Founding Member
Jan 26, 2002
401
0
0
Temple,Texas
Dec 11, 2003
#1
  • Dec 11, 2003
  • #1
Ive had my timing at 10 and fuel pressure at 40 for some time now, ive never really tuned my engine. Just wondering what people with simular combos are running, i also have 30 pound injectors if that makes a difference.



also does anyone know how to adjust the idle. I just moved the screw up and down on the t-body, just wondering if there is a way that your are suppposed to do it, like so many turns down or up etc..
 

Slow5.0

Active Member
Feb 13, 2003
2,554
0
46
Portland, OR
Dec 11, 2003
#2
  • Dec 11, 2003
  • #2
You can use this screw to manually hold open the throttle plate and adjust your idle RPMs, I recommend 850-950rpms. After you get it to idle around 900rpms, without the IAC connected, reset your TPS voltage to .990v or close to, with the key on engine off. Finally disconnect the battery for 10 minutes and plug the IAC back up.

This procedure totally cured my stalling problem when I started modifying my car. The problem is once you start modifying the engine the airflow is changed enough that the computer becomes somewhat confused and this doesn't allow the IAC to keep up. The result is the car dies. Since the throttle plate is NOW open at all times, the IAC does not control the idle when warm and therefore the car will not die.

or check out this posts

http://forums.stangnet.com/showthread.php?t=322824&highlight=idle

http://forums.stangnet.com/showthread.php?t=357936&highlight=idle
 
9

94VIRGINIASTANG

Founding Member
Feb 2, 2001
75
0
0
Dec 11, 2003
#3
  • Dec 11, 2003
  • #3
16degrees,32lbs with the vacuum on.
 
9

94gtslow

Founding Member
Jan 26, 2002
401
0
0
Temple,Texas
Dec 11, 2003
#4
  • Dec 11, 2003
  • #4
32 with the vaccum on at idle?
 
9

94VIRGINIASTANG

Founding Member
Feb 2, 2001
75
0
0
Dec 11, 2003
#5
  • Dec 11, 2003
  • #5
Yes,thats how I have mine.
 
You must log in or register to reply here.

Similar threads

J
Engine Running like crap :(
  • justadude07
  • Sep 27, 2025
  • Fox 5.0 Mustang Tech
Replies
8
Views
357
Fox 5.0 Mustang Tech Oct 19, 2025
DadLife0724
9
1995 5.0 just cranks
  • 9GT5
  • Jun 29, 2025
  • 1994 - 1995 Specific Tech
Replies
1
Views
373
1994 - 1995 Specific Tech Jun 29, 2025
AeroCoupe
M
01 mustang 3.8 fuel pressure issue
  • Mhaley2006
  • May 29, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
169
1996 - 2004 SN95 Mustang -General/Talk- May 29, 2026
Mhaley2006
M
X
VE Table Not Dialed? Send Me Your Datalog.
  • X-cam34
  • Feb 8, 2026
  • Digital Self-tuning Forum
  • 2 3
Replies
49
Views
1K
Digital Self-tuning Forum May 1, 2026
X-cam34
X
M
Engine Unexplainable Exhaust Pop and Gurgle
  • Mrnissen122
  • Feb 14, 2026
  • Fox 5.0 Mustang Tech
Replies
12
Views
579
Fox 5.0 Mustang Tech Feb 18, 2026
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific 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?