I've read quite a few threads! And will continue to do so if I go through with this swap. I just can't find a defanant clear answer on this. I found a good deal on a built b16a2, with swap mounts to go in my 91' wagon. My wagon is already mpfi so that I don't have to worry about. The engine doesn't come with an ecu. What would be the best ecu for me to use with this engine. Do I convert the engine to obd0? or change the wiring to obd1. Since I'm open to options I would like to choose the best one. And I'd like to price out how much that will cost me before I finalize this deal.