Do like Rake said and you will know for sure. one coil will go completely out,but both cylinders will show issue. If the wire is the culprit it will follow the swap. If it don't follow, change the plug out. Should be one of the two if it's running fine right now on cyl 2. jmho

Deep in the jungle Camouflaged by all the fallen leaves A hand holds up the sky
While shamefully I make my plea The alters callin' But my legs won't seem to stand
Guess I'm a coward Scared to face the man I am