Idle speed is 200 rpm higher than normal . Possible vacuum leak.
Trouble code P1416 means: AIR System Bank 2
Trouble code P0463 means:Fuel level sensor circuit,high input
AnswerTry Code 0000 this is the stock code unless someone changed it
Look for a leak in the port-side vacuum.
Trouble code P0463 means:Fuel level sensor circuit,high input
Google the code and you will have the answer.
That is a manufacturers code and not in my book but if you google "chevrolet diagnostic code p1415" it should steer you in the right direction. I think it is probably a vacuum leak somewhere. Good luck.
Trouble code P0507 means:Idle control system RPM higher than expected
P0507 : Idle control system, RPM too high.
Trouble code P0507 means: Idle control system, rpm higher than expected
Trouble code P0507 means:Idle control system RPM higher than expected
Trouble code P0507 means:Idle control system RPM higher than expected