I've played around with the injectors and wires on that cylinder-swapped injectors and wires and spark plugs from the next cylinder over with no change, always the same cylinder. New cap, rotor also. I've put an inductive timing light to the wire to the bad cylinder and get sort of a stumble at idle. Sort of ****-**-**_. A little stumble that shows up as a non-rhythmic flash at the light. All other wires, show fine and rhythmic-including the offending wire when reversed with the next cylinder over.

Grasping a straws but since this is the farthest cylinder from the coil, could the spark be too weak to travel that far from a weak coil?

Thanks.

JBoggs