What type obd system in 91 integra


Asked by Jul 08, 2012 at 02:44 PM about the 1991 Acura Integra

Question type: Maintenance & Repair

it has 2pn and 3pn  which to use to hook up reader/scanner

2 Answers


The OBD ll {2} is the one for this year of car. But I am not sure you are looking at the plug for OBD-ll, as my jeep runs a 9 pin plug, so I am not familuar with any plug with 2 or 3 pins. Might be, I just haven't run to one. My Pontiac also took the 9 pin.

Stephen Moran

OBD-II (2 )was not implemented until 1996. Your 91 Integra is OBD- I (1), and the connector for it is in the passenger foot well. It is a green plug.

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