So a couple days ago threw codes P0011 and P0021 for Camshaft position actuator bank 1 and bank 2 over advanced. Didn't have much time to really dive into it but then today threw another code P0340 for Camshaft Position Sensor A Bank 1 Circuit Malfunction. I then went to drive home and on the drive the motor would not rev much above 2500 RPM's. Felt almost like some kind of rev limiter at 2500 except a more harsh feeling than a normal rev limiter. Any idea where to start on this and if the RPM thing is even related to the camshaft issues? I'd rather try and find the correct problem before just replacing every related part. Apparently Infiniti want's 200 bucks a piece for the actuators

 

After looking at it this morning my Bank 1 sensor looks pretty dirty on the outside of the sensor and on the wires that clip in. Wonder if the jackass that did my oil spilled some oil on the clip. Anyone know if that could be all it is or should I just go replace the bank 1 sensor and start from there?