CEL After Headers - MustangForums.com

Go Back   MustangForums.com > Vendors & Sponsors > AmericanMuscle.com
Sign in using an external account
Register Forgot Password?

AmericanMuscle.com Premier store carries over 1000 Mustang parts and accessories. Features the largest mustang wheel selection available and offers free mount and balance with tire purchases. Committed to expert customer support, great prices and fast, free shipping!

CEL After Headers

Thread Tools Search this Thread
Old 05-20-2013, 12:50 AM   #1
1st Gear Member
Join Date: Apr 2012
Vehicle: 2012 Mustang
Location: Washington
Posts: 76
Default CEL After Headers

Hey AM,

I got the BBK headers and the Catted X Pipe from you like 2 months ago, It was installed at a local shop that has a pretty good reputation. Last week suddenly I got a CEL, I took my car to the dealership to have it scanned and the told me that the error codes were p219b and p0300 and they were due to the headers and there was nothing they could do and they the told me that a tune might be necessary. So finally I decided to get a Tuner, but my question is, will the Tune Fix the issue with the O2 sensor getting an imbalance in the A/F ratio? If so, I will order the Tuner and the Intake from you guys.

gus_vb is offline   Reply With Quote
Old 05-20-2013, 12:48 PM   #2
Platinum Sponsor
AMWill's Avatar
Join Date: Feb 2012
Vehicle: '14 GT
Location: Pennsylvania
Posts: 1,629
americanmusclefb americanmuscle


Even using the stock tune, there shouldn't be an Air/Fuel imbalance after installing headers. This code is most likely thrown from an exhaust leak somewhere between the header and cylinder head or header and Xpipe connection. If there's even a small leak at these points, you'll get this code. Also, a p0300 is from a random misfire. This again can be cause from an Air or Exhaust leak.

I would have the exhaust double checked for leaks before doing anything. Purchasing a Bama tune will NOT fix this issue, since it's a mechanical problem.

Again, have a shop smoke test the engine and exhaust. There's most likely a leak somewhere!

Will Levantovsky | AmericanMuscle.com
Toll Free: 866.727.1266
Bama Hotline: 888.226.9764 | M-F 9AM-5:30PM EST
Free Same-Day Shipping!
AMWill is offline   Reply With Quote
Old 05-20-2013, 07:28 PM   #3
1st Gear Member
Join Date: Apr 2012
Vehicle: 2012 Mustang
Location: Washington
Posts: 76

Thanks Shane, I ll have the car checked and then I ll order the tuner.
gus_vb is offline   Reply With Quote


bama, bbk headers, tune

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
timing issue 1987gt40ttopt 5.0L (1979-1995) Mustang 12 Yesterday 10:49 PM
P0320 - Bucking when warm - HELP! bryan616fl 4.6L (1996-2004 Modular) Mustang 6 08-27-2015 09:27 AM
mufflers? prophotog Classic Mustangs (Tech) 10 08-26-2015 11:55 AM
Modern Driveline install Hillbilly1968 Classic Mustangs (Tech) 1 08-19-2015 12:03 PM
californiaspec kevans79@yahoo.com New Member Area 5 08-18-2015 09:01 PM

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 12:15 PM.>

© Internet Brands, Inc.

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup