• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Running Lean( 1-2 )

  • Thread starter Thread starter Dpoollee
  • Start date Start date May 13, 2017
D

Dpoollee

New Member
May 9, 2017
4
0
1
May 13, 2017
#1
  • May 13, 2017
  • #1
I got a 97 gt 4.6 .I replaced fuel filter ,fuel pressure regulator, the pcv valve, maf and 02 sensor . idk what the crap is wrong and i need help
 

Saberstang

Active Member
May 2, 2017
130
24
28
Atlanta, GA
May 14, 2017
#2
  • May 14, 2017
  • #2
Do you have any modifications on your car? There are multiple reasons why your car could be running on a lean condition. Do you have a check engine light on?
 
D

Dpoollee

New Member
May 9, 2017
4
0
1
May 14, 2017
#3
  • May 14, 2017
  • #3
Saberstang said:
Do you have any modifications on your car? There are multiple reasons why your car could be running on a lean condition. Do you have a check engine light on?
Click to expand...
 
D

Dpoollee

New Member
May 9, 2017
4
0
1
May 14, 2017
#4
  • May 14, 2017
  • #4
Swapped PI is about it with flowmaster exhaust .and yes the check engine is on
 

Saberstang

Active Member
May 2, 2017
130
24
28
Atlanta, GA
May 16, 2017
#5
  • May 16, 2017
  • #5
Dpoollee said:
Swapped PI is about it with flowmaster exhaust .and yes the check engine is on
Click to expand...
Get the code read from your check engine light if you already have not and post what the code read. Also after your PI swap you should have a tuner with a custom canned tune or custom dyno tune after you do the swap.
 
You must log in or register to reply here.

Similar threads

Engine Random Misfire at idle.
  • Gulftown980x
  • Jul 29, 2026
  • SN95 4.6L Mustang Tech
Replies
11
Views
446
SN95 4.6L Mustang Tech Jul 31, 2026
squeak93
C
98 gt fuel pressure issues
  • chasecollier1984
  • Jun 2, 2026
  • SN95 4.6L Mustang Tech
Replies
0
Views
140
SN95 4.6L Mustang Tech Jun 2, 2026
chasecollier1984
C
9
1997 gt Starts then dies a few seconds after.
  • 97orange
  • Aug 13, 2026
  • SN95 4.6L Mustang Tech
Replies
5
Views
201
SN95 4.6L Mustang Tech Aug 17, 2026
97orange
9
J
Engine 4.6 Running rough at half throttle
  • jake411
  • Aug 3, 2026
  • SN95 4.6L Mustang Tech
Replies
4
Views
200
SN95 4.6L Mustang Tech Aug 4, 2026
jake411
J
D
Running both lean and rich with O2 heat codes
  • Danceswithfire5
  • Aug 30, 2026
  • SN95 V6 Mustang Tech
Replies
1
Views
131
SN95 V6 Mustang Tech Sep 5, 2026
apple99Mustangdude
A
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L 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?