I did a search and read all the other threads about this code. It seems that a few other with 01 or similar imprezas are getting this problem. Well my car just through this code today, and the closest subaru dealership's parts department isn;t open. I need to get it fixed and smogged today so I was wondering if a knock sensor from autzone will be good. I can always run it til monday and then buy one from subaru and return the autozone one, but if they are decent i can just keep it in. I believe it is duralast brand, si thats why i ask.
Also, when changing out the new one, do i need to unplug the battery or anything? thanks