P0300 & P0021 At the same time?
 

I have a 2005 3.5 se Altima, The car is idling very rough, I took it to advanced auto they did a diagnostic test and came up with codes P0300 (random/multiple cylinder misfire) And code P0021 camshaft position actuator, I have to believe that one of the problems is causing the other?

Any help would be greatly appreciated.

thanks