I have everything I need to put it in but I need to know if I can use my wiring harness in my civic to run the engine or do I have to have the one out of the car it came in....I have the ecu jumper harness to make it fit obd2 plugs then it goes down to the obd1 ecu so can I plug it right in or do I need to use the other harness..oh The engine came out of a 93 accord and I'm putting it into a 98 civic.....need a wiring diagram for a 93 H22A if anybody can help????

 

Keep the harness thats in your car but you will have to do some re wiring for the resistor box and other stuff.