4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

CEL help

Thread Tools
 
Search this Thread
 
Old Apr 20, 2009 | 04:34 PM
  #1  
1999 GT's Avatar
1999 GT
Thread Starter
3rd Gear Member
 
Joined: Feb 2008
Posts: 897
From: CT
Default CEL help

my car threw another cel and the diagnostic said: P1131 insufficient switching 02S 1/1sensor/lean

does this mean an 02 sensor is bad?
Old Apr 20, 2009 | 08:13 PM
  #2  
5.0 85 GT's Avatar
5.0 85 GT
3rd Gear Member
 
Joined: Nov 2007
Posts: 888
From:
Default

im breathing 02 right now so not sure....someone help him out casue hes goin to autozone tom...Cliffy K or WhiteFox...mucho help appreciated..u guys know your stuff
Old Apr 20, 2009 | 09:02 PM
  #3  
5.0 85 GT's Avatar
5.0 85 GT
3rd Gear Member
 
Joined: Nov 2007
Posts: 888
From:
Default

id say blow ur ***** and change it for the half a rock...unfortuantely...no such thing as an esay exhasut install..save it for the new x
Old Apr 20, 2009 | 09:51 PM
  #4  
cliffyk's Avatar
cliffyk
TECH SAVANT
 
Joined: Dec 2006
Posts: 10,937
From: Saint Augustine, FL
Default

Here's what the shop manual says (P1131 is the same as P1130, just a different sensor). Work the list of possible causes from the top down...
Old Apr 24, 2009 | 12:05 PM
  #5  
grogan's Avatar
grogan
3rd Gear Member
 
Joined: Mar 2008
Posts: 811
From: maryland
Default

did u just install long tube headers?
Old Apr 24, 2009 | 12:18 PM
  #6  
WhiteFoxGT's Avatar
WhiteFoxGT
Resident Ford Troll
 
Joined: Jul 2006
Posts: 6,723
From: Delaware
Default

Originally Posted by 5.0 85 GT
id say blow ur ***** and change it for the half a rock...unfortuantely...no such thing as an esay exhasut install..save it for the new x
lol what?

If you have lean 02 codes, check for exhaust leaks at the manifold or a vacuum leak up top
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bryan616fl
4.6L (1996-2004 Modular) Mustang
10
Jan 25, 2019 09:07 PM
Urambo Tauro
4.6L (1996-2004 Modular) Mustang
1
Jun 10, 2016 03:28 AM
Scottyboy187
SVT Forums
3
Nov 20, 2015 02:57 PM
Scottyboy187
4.6L (1996-2004 Modular) Mustang
9
Nov 5, 2015 04:18 PM
BlackShelbyGt500
2005-2014 Mustangs
14
Aug 10, 2015 11:50 AM




All times are GMT -5. The time now is 05:42 AM.