I think it would be wise to share the 3S-GTE support list
so here it goes.
--------UNSUPPORTED--------
ST165 ECU *should have partial support with the next gen OBD1READ
90-91 normal ST185 ECU *should have partial support with the next gen OBD1READ
ST215 ECU (obd2)
----------SUPPORTED---------
1991 RC and CS ECUs have been proven to work 89661-2B320 and 89661-2B310,
92-93 ST185 ECU all of them
normal ST205 ECU
WRC ST205 ECU
MR2 ECUs of the same years are supported too.