How to tell what year ECU

[90GSX16g'd]

Hey guys, Is there anyway on an ECU to tell what year of car it came out of by looking at the numbers only and not knowing the car year? I need to know ASAP or show a thread that answers this question.

Thanks
Scott

 

[huafist]

http://simon.chi.il.us/~steve/Auto/DSM/ECUID.html