I have a 95 Trans am with the single cat. I believe OBD1 is the single cat pcm. The question is I have been looking around and it seems 95's had OBD1 connectors and also had OBD2 connectors with OBD1 pcm's. Is this correct.

 

If you mean it has an OBD-II shaped DLC, that is correct. All 1995 LT1 equipped f-bodes are this way.

BTW, California emissions equipped 1995s had dual cats.

 

My 95 firebird has only one cat. So that just means it wasn't california equipped.