i had sme bad wireing on my injectors so i hade to get a new car/engine harness since it was really the only way to get new clips,etc.any, i have a 2000 civic ex and i was wondering;since i had to hack my ecu harness to get the wires from e-manage to work(if it could be causing the car to run low)??also does the engine harness(that cost around 350$) go up and connect to the car ecu??