engine management light on

Hi im newbie iv just brought a second hand 2010octavia vrs dsg desiel its engine management light is on iv had it checked an iv changed throttle body because it was damaged an 1 fault is still showing 008213 intake manifold flap position sensor bank 1

P2015-000- implausible signal

I dont know what to do mechanic sed its inlet manifold runner needs replacing bu im not sure it drives fine no lack ov power

An is ita problem if I carry on driving the car anothr thin is wen I open the front bonnet it feels like an oven door been open can any one help my plz