where is the diagnostic port? - MustangForums.com

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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.

where is the diagnostic port?

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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.
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Old 09-01-2009, 10:55 PM   #2
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Join Date: Jun 2007
Vehicle: 85 mustang
Location: West Virginia
Posts: 30,506

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

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Suggest having a conversation with the highly INEXPERIENCED clowns....D.R the Dork, THE BarnyYard smells like......again and finally staring the highly intelligent and I must say skilled Eutard! UH where did de' go George
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1991, 2000, 91, car, computer, diagnostic, diagnostics, edge, ford, location, mustang, obd, oxygen, port, service

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