how can u tell if it a 98 itr usdm ecu?

[vietboi4shonikka]

like the title said....and can u tell my looking at the number on the ecu itself?

also is the 98 usdm ecu chip obd2 a or obd2 b?

cuz im looking to buy one for my 98 usmd itr and not sure which to buy. im running on a gsr ecu right not and its not running the same as it was b4

can someone tell by these number on the ecu 37820-p73-003 967-115511

i really need to know

thank you