GT Performance Mods 2005+ Mustang GT Performance and Technical Information

check engine light

Old Apr 12, 2005 | 12:30 PM
  #1  
black gt 2005's Avatar
Thread Starter
GT Member
 
Joined: December 8, 2004
Posts: 100
Likes: 0
installed bassani x-pipe with hi flow cats and mufflers . started up ok no check engine light . went in house cleaned up. came out started up check engine light on. cleared with predator . rided around 10 miles no light , started up again check engine light came on. what to do?
Reply
Old Apr 12, 2005 | 01:02 PM
  #2  
The Lyin' King's Avatar
Mach 1 Member
 
Joined: April 8, 2005
Posts: 681
Likes: 0
Perhaps a tune is in order?
Reply
Old Apr 12, 2005 | 01:27 PM
  #3  
black gt 2005's Avatar
Thread Starter
GT Member
 
Joined: December 8, 2004
Posts: 100
Likes: 0
Originally posted by The Lyin' King@April 12, 2005, 1:05 PM
Perhaps a tune is in order?
i have 91 tune.
Reply
Old Apr 12, 2005 | 01:30 PM
  #4  
96vert's Avatar
GT Member
 
Joined: March 11, 2005
Posts: 120
Likes: 0
You might be flowing too much air now with the high-flow cats... check with Diablo to see if high-flow midpipes are covered under the "stock" 91 tune.

Second option is the high-flow cats aren't cleaning the air enough for the rear o2 sensors... I would think this would take longer though, not a quick CEL like you experienced.
Reply
Old Apr 12, 2005 | 04:07 PM
  #5  
Faber's Avatar
Cobra Member
 
Joined: March 29, 2005
Posts: 1,032
Likes: 0
unplug the negative battery cable and let it sit overnight.

that took care of it for me.
Reply
Old Apr 12, 2005 | 05:19 PM
  #6  
black gt 2005's Avatar
Thread Starter
GT Member
 
Joined: December 8, 2004
Posts: 100
Likes: 0
Originally posted by Faber@April 12, 2005, 4:10 PM
unplug the negative battery cable and let it sit overnight.

that took care of it for me.
i have predator close trouble code off butt will come back on.
Reply
Old Apr 12, 2005 | 05:46 PM
  #7  
cdemot02's Avatar
Bullitt Member
 
Joined: July 14, 2004
Posts: 448
Likes: 0
Turn the Rear 02s off.
Reply
Old Apr 12, 2005 | 07:59 PM
  #8  
black gt 2005's Avatar
Thread Starter
GT Member
 
Joined: December 8, 2004
Posts: 100
Likes: 0
Originally posted by cdemot02@April 12, 2005, 5:49 PM
Turn the Rear 02s off.
what that ? how do that?
Reply
Old Apr 12, 2005 | 11:32 PM
  #9  
dustindu4's Avatar
9 is not my lucky number.
 
Joined: March 12, 2004
Posts: 3,663
Likes: 1
Originally posted by black gt 2005+April 12, 2005, 10:02 PM--><div class='quotetop'>QUOTE(black gt 2005 @ April 12, 2005, 10:02 PM)</div><div class='quotemain'><!--QuoteBegin-cdemot02@April 12, 2005, 5:49 PM
Turn the Rear 02s off.
what that ? how do that?
[/b][/quote]

with the tuner
Reply
Old Apr 13, 2005 | 09:54 AM
  #10  
porsche's Avatar
Bullitt Member
 
Joined: October 20, 2004
Posts: 219
Likes: 0
well i have the the same system and your car is running lean so for now i would add some fuel at 4-7 range about 5 clicks to the rich side then drive to a dyno.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ecostang
'10-14 V6 Modifications
1661
Nov 3, 2022 08:50 PM
STOERKEL
SN95 Mustang
3
Sep 11, 2015 11:38 AM
ClayP
2010-2014 Mustang
7
Aug 11, 2015 06:23 AM
Will3212
2015 - 2023 MUSTANG
2
Jul 16, 2015 10:30 AM


Thread Tools
Search this Thread

All times are GMT -6. The time now is 05:14 PM.