Wondering if anyone could help. Im looking to put a 99 b18C1 (GSR) Into to my 93 si civic hatch. My car is OBD1 and the engine is OBD2 that I know. I have the 99 gsr ecu but dont want to use it I want to use my P28 ECU. I was told you could just drop the motor in gsr motor and plug the gsr engine harnes into the d16z6 engine harness. And the motro would run. But the other day I was looking at the plugs for the engine harness and they dont look like they fit into eachother. Im I supposed to use the engine harness of the d16z6 and put it onto the gsr or what. Im confused I need some help. Oh the reason I dont want to use the gsr ECU is because it is obd2 and of the sencondery runners. I bought the skunk2 intake manifold so i could run this motor with my Ecu. Please help. Thanks