Hi, this is my first post, as I just found this website trying to find some answers. Sorry if there are other posts out here about the same issue, but I'm looking for some fresh ideas. So my Civic recently had a check engine light go on while on a road trip, but before I could run the code, the light went off. Then a few days ago, while driving it, the check engine light went on and the car started to bog down when accelerating and idle at high or low rpm. After checking it out, all 4 cylinders were throwing misfire codes as well as the random misfire code and P1399 ICM code. I have replaced all the plugs, wires and coil pack, as well as the fuel filter and ECU fuse. The car is still displaying the same symptoms, but only after the vehicle has warmed up and running at a normal temp. What is my nest step?