Please post the full DTC codes. There are 1000's and they each have a story to tell. Don't expect the ppl you are asking for help to guess.
no information = no help (or worse yet, wrong help).
Note however, that frequently CAM sensor problems can be traced to a bad alternator diode. Have the alternator tested for output and excessive AC ripple. Almost all autoparts stores will do it for free.
Double check that the battery is full charged, the cables are CLEAN and tight. Don't cut corners here.
Also note that whenever there is a CAM related DTC, the PCM fires the injectors on every stroke. This can result in cylinder wash down and oil dilution from excessive gas.