Iananddaph

Hi, I am new to the forum. I have had some issues recently with my 2009 A3 8P Sportback. Had to replace the throttle body as had a TPS error but now have the above error code P0016, I had the cam and camshaft sensors replaced yesterday but still have the same error I have been told that it could be the chain tensioner. The symptoms are: difficult to start, takes 2 or three revolutions of the engine, engine management light on, poor idle, engine moving about but the acceleration is good. Could this be the tensioner that is at fault? Many thanks Ian