Hi guys, I've just bought a forester 2007 2.0 na manual, it has a miss fire and need it sorting, there is no check engine light, and when you rev it when it's stood still or with the clutch in it doesn't miss fire, I took it to a local subaru specialist and he changed the airflow meter and changed something to do with the cam adjustment said it was out, car running OK for just over a week and the miss fire came back, rang the garage and he said it was the coil pack I replaced but it wasn't, so don't want to take it back there, any ideas? Also it looks hard work to replace the coil packs on this😢