ignition coil

I sometimes have a 1 second delay after turning the key ...or it might be that I then turn the key a little farther and it starts. It isnt slow to turn once it connects any ideas is it the ignition going bad? Starter solinoid? what do you think?

The problem started two or so months ago when my check engine light came on. When I got the code read, it came back with P0352, which means ignition coil B is malfunctioning. I think my mpg decreased and my car would shake sometimes, too I tested the coils by taking them out one at a time and...