You can't use an obd1 harness in an obd2 car, it just doesn't work. Your best bet is to get a 99-00 SI ecu and you use the stock EX harness. You also need the obd2 injectors, distributor, and alternator. You will also need to get a kit to make that transmission work. Basically, your getting an motor that can be up to 15 years old and your going to spend just as much getting it in the car as you would spend on a 99-00 Si motor.