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

Check Engine Code, what does it mean?

  • Thread starter Thread starter ASchaffer
  • Start date Start date Jun 23, 2004
A

ASchaffer

New Member
Oct 8, 2003
79
0
0
Tampa, FL
Jun 23, 2004
#1
  • Jun 23, 2004
  • #1
OK, I got the code now for my check engine light. The code was:
P1131
P1130
Both saying "Manufacturer Control Fuel Air Metering".
Does anyone know what this means? Thanks!!
 

Carl

Founding Member
Aug 7, 2000
613
0
0
Johnson City, TN
Jun 23, 2004
#2
  • Jun 23, 2004
  • #2
P1130 Lack of Upstream Heated Oxygen Sensor Switch - Adaptive Fuel Limit - Bank No. 1.
P1131 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1.

There you go.
 
A

ASchaffer

New Member
Oct 8, 2003
79
0
0
Tampa, FL
Jun 23, 2004
#3
  • Jun 23, 2004
  • #3
ok, but what on earth does that mean?
 

RysRed96GT

I like it FURRY!!!
Founding Member
Apr 9, 2001
3,207
0
56
Pasadena, MD
Jun 23, 2004
#4
  • Jun 23, 2004
  • #4
do both those codes mean its running rich and lean? maybe an unburnt mixture? are u having a misfire in bank 1?
 

Carl

Founding Member
Aug 7, 2000
613
0
0
Johnson City, TN
Jun 23, 2004
#5
  • Jun 23, 2004
  • #5
It probably means that if you have MIL eliminators, than one has gone bad or if you don't then it's just telling you that you have no cats. If your h-pipe has high flow cats it can still sometimes set off those codes.
 
A

ASchaffer

New Member
Oct 8, 2003
79
0
0
Tampa, FL
Jun 23, 2004
#6
  • Jun 23, 2004
  • #6
The problem is that my car is running bad, it originally didnt throw any Check Engine Codes, and then a day after it running bad it popped the check engine light on. That is the code that came up. Would an o2 sensor cause my car to run bad?
 
You must log in or register to reply here.

Similar threads

I
Engine Help requested in identifying how to resolve engine light issue
  • Ianslaney
  • Oct 4, 2026
  • SN95 4.6L Mustang Tech
Replies
1
Views
167
SN95 4.6L Mustang Tech Oct 4, 2026
Bullitt347
M
05 Mustang GT With Annoying P0463 Issue
  • Machbud
  • Oct 17, 2026
  • 2005 - 2009 Specific Tech
Replies
2
Views
168
2005 - 2009 Specific Tech Oct 24, 2026
manicmechanic007
B
Help! Fox with idle issues
  • bbarton
  • Sep 11, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
275
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Sep 12, 2026
AeroCoupe
Engine Vacc leak detector
  • Creomod
  • Jul 19, 2026
  • Fox 5.0 Mustang Tech
Replies
4
Views
194
Fox 5.0 Mustang Tech Jul 25, 2026
Mustang5L5
P
2000 GT Random Power Loss
  • Pinellas50
  • Mar 9, 2026
  • SN95 4.6L Mustang Tech
Replies
4
Views
419
SN95 4.6L Mustang Tech Mar 23, 2026
Pinellas50
P
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?