obd port

1999 OLDSMOBILE DELTA 88
135,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MARK JOHNSON
  • MEMBER
  • 1 POST
where is the obd diagnostic port?
Sep 16, 2017 at 8:31 AM
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STEVE W.
  • ✓ASE Certified Mechanic
  • 15,200 POSTS
  • ASE Certified Mechanic
Under the dash on the drivers side. Check out this guide and the diagrams below

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Sep 16, 2017 at 9:37 AM
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