Just wondering what you they started using OBDII. May soon be in ther market for an OBDI GSR.

 

94s and 95s are OBDI

 

you forgot 92-93 h:

 

OBD-I was mandated by the United States Department of Transportation for the 1992 model year. OBD-II was mandated by the US DOT for the 1996 model year. Every car sold in the US from '92-'95 has OBD-I, every car sold in the US since '96 has OBD-II. It is not model specific.

 

There were revisions to OBD2 as well. OBD2a existed until 1998 and then OBD2b came out. Obviously whatever changes came out were small enough to do be a different version. But ti did warrant new wiring harnesses.

 

Gah... stupid third-gen preference of thought

 

Those are designations relating to changes Honda made to its wiring and really have nothing to do with the actual on board diagnostics of the car. There's no US DOT requirement for OBD-IIa or b or any of that stuff. That doesn't mean that carmakers can't change their wiring specs, it's just that the current diagnostic spec as required by the gov't is still OBD-II.

 

Good to know