it is on passanger side floorboard on side of console
The 1997 Honda Prelude has OBD II, there is no conversion. You will need a scan tool or code reader that is capable of reading OBD 2 codes. From 1996 up all vehicles with few exceptions are mandated by the Government to have OBD II systems. This was put into place to standardize codes and make diagnosing problems easier.
The OBD II plug in is located on the passenger side of the center column underneath the dash. It is in a recessed panel and colored gray in front of a blue connection point.
Remove the ash tray
The Honda Odyssey OBD 2 port is on far right edge of dash; next to console; faces down
The 2007 Honda Civic OBD 2 port is under driver side dash next to center console
Trouble code P0401 means: Exhaust Gas Recirculation Flow Insufficient Detected
OBD II
The OBD II plug for a 2013 Honda CR-V is located under the dashboard on the driver's side. Specifically, it can be found near the steering column, just above the brake pedal. You may need to look slightly up and to the left to spot the diagnostic connector.
Need to find the obd ii connector on a 2012 honda civic ex
If by "OBD" you mean on-board diagnostics (i.e., OBD II), the vehicle you describe probably does not have OBD II. OBD II became mandatory starting in 1996. If it does have OBD II, the location of the connector varies in Hondas. It might be near the hood release lever, or under the steering column, or even near the gear shift lever.
it doesn't
The OBD II plug in the 2002 Subaru Outback is somewhere in the dashboard. The user manual has the exact details of where it is located.