Mechanic Job in Silverdale, Washington

Hey there! My car had an engine light come on not too long ago, and I had O'Reilly's test it for me. Misfire in Cylinder 5- I replaced all of the spark plugs and the coil on 5. The light didn't go away, so I tried the old "unhook the negative charge on the battery and rehook". Yeah, that made it worse. I now have an auto-mechanical power steering reduced light on, and I have no idea what to do with it. Thank you.