Go Back   MustangForums.com > Ford Mustang Tech > 5.0L (1979-1995) Mustang
Sign in using an external account
Register Forgot Password?

5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
Sponsored by Weld Racing

Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

where is the diagnostic port?

Thread Tools Search this Thread
Old 09-01-2009, 10:45 PM   #1
Join Date: Aug 2008
Vehicle: 1991 Mustang GT
Location: Illinois
Posts: 6
Default where is the diagnostic port?

i'm trying to diagnose my mustang with a computer my friends dad has and we couldn't find out where the diagnostic port was. we're trying to figure out why my car has a check engine light on. some mechanics we brought it to said it was the oxygen sensor or something because of my pipes i don't believe them though.
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
jacobness is offline   Reply With Quote
Old 09-01-2009, 10:55 PM   #2
Pro-comp heads rule!
mjr46's Avatar
Join Date: Jun 2007
Vehicle: 85 mustang
Location: West Virginia
Posts: 30,244

driver side below windshield wiper motor/ above brake booster in the corner there....fyi it is a obd 1 connector for ford and you need a scan tool that can run a koeo/koer test to pull codes or google DIY KOER and a paper clip and counting flashes will do the trick

Originally Posted by dudegirl View Post
Be polite and cordial when you talk to them, as pissing off the guys that can help you is seldom a good idea.
mjr46 is offline   Reply With Quote
Old 09-01-2009, 10:55 PM
Ford Mustang

Paid Advertisement


1991, 2000, 91, car, computer, diagnostic, diagnostics, edge, ford, location, mustang, obd, oxygen, port, service

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
Slow Learner needs help installing a Predator tune! sweet99 4.6L (1996-2004 Modular) Mustang 9 07-15-2006 05:15 PM
where exactly is the PCM??? Brute03 4.6L (1996-2004 Modular) Mustang 9 05-21-2006 04:01 AM


Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 07:04 AM.

© 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