So I just recently got into the Honda scene and what better way to get in it with a 99 Civic DX Hatchback. I recently bought it and found out it doesn’t have the right engine. The original engine has it D16Y7 and it had D15B7 in it. To do that kind of swap wouldn’t you have to change it from OBDII to OBDI? And would I have to get the D16Y7 engine, wiring harness and the ECU? Just trying to change it back to stock, thanks guys look forward to hear the responses.