Where would I purchase a OBD code reader for 1995 Nissan Quest The under dash connector in 1995 were not standard as in 1996 model cars. Do I need an OBD I or OBD II reader?

OBD 1 ANSWER Some vehicle makes started switching to OBDII before 1996. In the driverside door panel it will tell you if it is OBDII compliant. Most likely not. Try doing a search on Ebay I am sure there are OBD scanners on there for you make and model