Missfire - arcing at ignition coil

[Rawhide]

Hi gents - my 182 is misfiring. I have swapped the injectors as preventative maintenance and I did suspect them. I have a flashing engine light. I noticed after swapping the injectors with the lights off in the garage arcing around the ignition coil. Specifically lead three. When removing the other leads its fine, but lead three is arcing around the coil.

Can i assume this to be the lead or the coil itself? I have a video if it helps.

 

[Daz...]

Check the coil pack, the plastic might have a hairline crack in it.

If they haven’t been done recently I’d be inclined to replace the coil pack and the leads.