Hey guys, I need some help diagnosing a miss that appeared suddenly. My car is a stock r33 gtst, I put new plugs and a set of yellow jacket coil packs in it about a month ago. It was running fine until a couple of days ago when I went to start it and it was missing badly.
By disconnecting the coil pack plugs while it was running I found that cylinders 1 and 4 seem to be missing ( It runs the same with these 2 disconnected) Those cylinders continue to miss if i swap coils from other cylinders. I put new plugs in them as well, and even pulled the injectors out and got them cleaned and flow tested and they are still misfiring.
Any suggestions on what I should try next? I'm thinking the wiring to the coils or injectors but I'm not sure how to go about testing them.
