Hey all. I am driving a 4 cylinder 2003 Hyundai Sonata just at 130000 miles. The other day on the trip back home the car started shaking violently and the check engine light came on. I ran the code and it led me to a cylinder 1 misfire. Today I replaced my spark plugs, and wires. The number 1 plug had some deposits on it, but nothing that should cause a misfire. Now when the car is in idle there is a spark that jumps from the boot of one of the new wires to the grounding on the corresponding coil. I have never noticed this spark before changing the plugs and wires. It does this with either set of wires. I have a picture below where the spark is jumping from. The car has a noticeable drop in idle when it sparks.
Do I need to look into getting some new coils?