The new cars has a lot of electronic devices and computers. As I like to maintain my family's cars I would like to know if I don't need to plug any OBD2 or computer after assemble or fix the cars. I'm not a mechanic man, I just fix what I can. But sometimes I am afraid about dissemble and assemble something that later will need to plug a computer and configure something.
Correct, you do not need to adjust the computer after maintenance/repairs.
It might run rough for the first few trips while the computer re-adapts. Also, some cars will show a warning for things like "oil service due" if you do not tell the computer that this has happened.