Hey new to the whole concept of forums and then found myself reading everything that was ACTUALLY helpful from this one so here I am. Anyways I have a (stock) 91 teg that I am sick of dumping money into and not having it improve the car. So I got a 91 civic DX hatch back from a buddy that I sold it to and am try to swap motor and trans out of the da into the civic. Do I have to do the conversion or not? I've already basically builta harness for the resistor box and injectors I just need to know for sure if its a must before I go messing with the ecu wiring.