When does this need to be changed or can you have it cleaned?

 

There isn't any routine maintenance to the fuel pump. If one is having problems, it needs to be replaced.
How do you know you are having problems with it? Replacing it, a special tool should be used to remove a plastic ring that holds it in place.

 

Well I heard it is like every 30K miles but I wasn't sure. I have 40K on a 05, I just changed the plugs and wires on it. When does the coils need to be changed?

 

You should have changed it when you did the plugs and wires.