Is it true there are two different versions of OBD2 wiring depending on the year the car was made. A guy that I was thinking of getting an engine from told me that 96-98 civics and 99-2000 civics have different OBD2 wiring.

 

yes there is a difference from 96-98 and 99-00. It is true that there is "OBD2A" and "OBD2B"

 

<u>OBD2</u>

96-98 Civic
96-99 Integra

<u>OBD2B / OBD2.5</u>

99-00 Civic
00-01 Integra