Please help check engine codes
 

Hello,

My wife owns a 04 auto rx-8. lately it has been acting wierd, slow at accelerating, sputtering, misfiring, horrible gas mileage. I pulled up the codes and they are P0506 and P2096. I believe the first one is about coils? and the second one is the second 02 sensor reading lean? I am a auto technician and can work on cars but i am new to rotory engines. Should i replace the coils? Any ideas? thanks guys