This is too broad a question. It needs to specify what year and trim level, if we are talking about Preludes.
location of obd port for a 2002 2 door Honda accord
Need to find the obd ii connector on a 2012 honda civic ex
The 2003 Honda Accord OBD 2 port is under driver side dash above dead pedal
The 2001 Honda Civic OBD 2 port is on lower right edge of dash; behind console trim
The 2005 Honda Accord OBD 2 port is under driver side dash above the kick panel
pull out the ashtry
The 1998 Honda Civic OBD 2 port is under driver side dash next to kick panel
The 2000 Honda Insight OBD 2 port is on right side edge of console; near floor
The OBD port on a 2001 Honda CR-V is on the right side, right next to the console in the center. The location of the OBD port can vary so it's important to make sure of the specific year of the car.
It has to be located within 18" of the steering column.
OBD II
There is no OBD connector on a 1974 Honda. This vehicle is naturally aspirated and does not have an ECU and has a carburetor