Defective Subaru ignition wires place a high load on the ignition coil and can cause carbon tracks or short circuits between electrical contacts.
A defective Subaru ignition coil will cause engine misfire, which causes hesitation, extreme power loss, engine stalling, poor fuel mileage, and illumination of the check engine light. Ignition coil failure will cause the Subaru to fail to start or to start and stall.
Repair can include Subaru ignition coil replacement, Subaru spark plug replacement, and Subaru spark plug wire set replacement.