I purchased a 2013 outback wag with 67000 miles. Issue with Check engine light, park brake light, and cruise control lights flashing with engine “bucking” and sputtering. Got to mechanic with computer stating 4th cylinder coil was toast and all sparks needed replacement. Within a month, same issues showing up. Taken back to mechanic with Computer reading ignition coil issue; advised to get to Subaru dealer (which is an hour away). The engine light goes off as I pull in. They state they can not replicate the problem and no error readings showing up on computer. Help! I’m a front line healthcare worker and must have my vehicle for home health therapy delivery in rural Texas. Gotta have it running right... any ideas??