What ECU's are compatible for a 1996 Isuzu Rodeo 4cyl Manual? Will one for a 6cyl work?

unfortunately the only thing that will work for you is an 96 isuzu rodeo or you might get lucky and find a couple of 96 honda passports in a salvage yard...Honda passport was an Isuzu in disguise...good luck...you ca probably look on ebay