I started my car this morning and the check engine light came on: 15 degrees outside

P0300 Random/Multiple Cylinder Misfire Detected

Does anyone know what this could be. A bad coil maybe?

 

i have recently had the same problem, i am about to change my coil packs as well. the only diff, i live in hawaii so its never cold. poor car sounds like a subie. well i shall try and let you know how i make out tomorrow.

 

i changed the plugs and coil packs, car seems to be running great. drove all day today and no issues. hope this helps