Ignition system
I have been getting codes that say there is a problem with coil primary/secondary wiring on cylinders 1,2 and 4. I changed all spark plugs (6) and I also changed coil packs on 1 and 2. The code for 4 came after I changed 1 and 2 and now all three remain and there is definitely still an issue that i can feel and hear when running the engine. any suggestions?