I also have this prob! My 2005 forester x threw a p 0301 and 0302, I replaced plugs and wires and it didn't fix . The car would still sputter and stop! I went to Subaru for a replacement coil $140 and after installing it,I turn thee engine over the car goes z... And then the power no longer works unless you un plug the negative on the batt and re set. Is there something I'm missing that would cause the new coil to behave like that? Like a reset?Use more dielectric grease? 3 bolts, 4 spark wires and a plug that was it. Spark Wires are in the correct order!