How to know the correct computer engyne which correspond mu grand cherokee 1993 v8 to make it started how should i know what serial number

*IJ4GZ78Y3PC577664* this is the chessy number and there is not any conversion thnk u can we find the perfect computer engyne?

Ok thnk u but how should i know on enternet if i search on this vin to have the ecm number to be able to request it from another country , if i want to search it on enternet what should i do when i put this Vin to have the correct ecm number??

Ok thnk you yes im not in the states but i will request one frome there so what i would know the correct ecm ill wait it to come here then try it so thats why i would know the perfect one who fit my vehicle thanks anyway a lot