I just installed a motor in my sons audi and it is knocking terribly I have been turning wrenches most all my life but this is my first Audi my code reader says bank 1 cam position sensor bank 1 cam over retarded and random misfire. could all of this be caused by the position sensor?

 

What's the all the code #'s that you get?
# of miles on car & do you know when timing belt was done last?
Could be several possibilities.
1st step would be to make sure the CPS is functioning correctly.
Strong possibility is the cam chain timing between intake & exhaust cams, but don't want to jump to conclusions.
Just some info on the cam timing:
Timing belt keeps crank & exhaust cams in time, while timing chain between exhaust & intake cams keeps the intake cam timed. The chain must have a specific chain roller (link) count between exhaust & intake. The 2.7 has variable valve timing & there is a cam chain tensioner that does that. I think the tensioner functions to advance timing @ specific speed & engine load conditions. If you have retarded timing, is could be that tensioner is bad or that chain link count is incorrect.

 

The codes that I pulled are p0300 Random misfire, p0012 Intake camshaft position Timing (Over Retarded Bank 1), p0348 Camshaft Position Sensor Circuit High imput Bank 2,p0341 Camshaft Position Sensor Circuit Range/Performance (Bank1 or single sensor). I appriciate all of the help