Right the missus Mk1.5 Focus 1.6 Auto has just thrown up 2 fault codes

1. Cam shaft position sensor circuit malfunction
2. Fuel Level Sensor Circuit Malfunction

Are these related, what issues will they cause and is my first port of call to replace these sensors and go from there?

Thank You

 

Could be old codes, if the car is still behaving/driving perfect it will be ok.
A duff CPS, or it's circuit will stop the engine dead, no go without this, the two are not related.
tabetha