you can go chipped obd1 ecu in a 96, but you won't pass emissions since the datalink will not read. what you'll need to do is at least have the items and the ability to swap in a stock ecu, injectors, cat, and o2's and drive it to get the ecu into readiness when it comes time to pass emissions. you aren't screwed, but you will have to do a little work each year if you want it to pass emissions legally.