Yep, it is OBD1 for sure.
Some people say that some late 1995 models were OBD2, but I have never seen one. I would just consider any 1995 or older OBD1 and 1996 and newer OBD2.
One way to tell on a VR6 is the OBD1 throttle body is a lot smaller. There is an EGR setup on the back of the engine. There is only one o2 sensor.
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