check engine light wont go out ofter changing densos

Question

check engine came on and it was for the left bank cam shaft position sensor ,changed sensor check engine light not out. read code and it was for right bank cam shaft position sensor changed that sensor light still not out. what is causing this code light.
 the truck is a 2007 Nissan fronter se with the 4.0 engine.

Answer 1

There a area that should be check that gets pasted without notice , check the charging system , these tend  to have a over charging condition where the camshaft position sensor code is set ,. No more than 14.7 volts