"check engine"light on after installing headers
Thread Starter
|
New User
Joined: Dec 2003
Posts: 12
Likes: 0
From: carencro,LA
"check engine"light on after installing headers
I just installed some headers on my expedition( 2000 w/5.4) I also changed to a free flow muffler. After about 10 miles of driving the check engine light came on. Has anyone expirenced this problem? If so ,how do you fix it?
Elder User
Joined: Sep 2006
Posts: 871
Likes: 0
Sometimes the physical removal and reinstallation of a "bordeline" sensor can knock it out of whack.
Also make sure it's plugged in, no contacts at the connector are corroded, and make sure no pins were pushed out and/or crushed. Also make sure there are no exhaust leaks in front of the O2, as that can throw it off sometimes too. Make sure the gaskets are all properly sealing up and all that.
Sometimes, exhaust modifications can screw things up for the computer, but I would think it would have flagged both sensors if that was your case.
Good luck.
Also make sure it's plugged in, no contacts at the connector are corroded, and make sure no pins were pushed out and/or crushed. Also make sure there are no exhaust leaks in front of the O2, as that can throw it off sometimes too. Make sure the gaskets are all properly sealing up and all that.
Sometimes, exhaust modifications can screw things up for the computer, but I would think it would have flagged both sensors if that was your case.
Good luck.
Thread
Thread Starter
Forum
Replies
Last Post
Nathan Plemons
1987 - 1996 F150 & Larger F-Series Trucks
2
May 12, 2015 05:15 PM
Bobs55effie
Explorer, Sport Trac, Mountaineer & Aviator
2
Jun 18, 2010 03:18 PM
Wakeboarder141
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
32
Apr 2, 2004 06:46 AM
