eprom

i have a 90 gsx and i was just wondering is it rare for one to have a eprom ecu in it. I mean ive looked around on the net and it said some do some dont and im going to look here soon but i was just wondering if most do usually. thanks

95 is the olny year they had Eprom ECUs....

95 is the olny year they had Eprom ECUs....

WRONG! lol 95 is the only year 2g's had eproms. but some 1g's came with eproms. ive never seen a list saying how to tell other then opening up the ecu though. that reminds me i gotta pull mine out and check......

www.tmo.com shows how to check.

thanx