Hi i am new to the audi family. I just purchased an A4 1.8t quattro 5 speed and on the way home the CEL came on and later it started stuttering at higher speeds (60 mph and above). So i hooked it up to the scanner and it was error code P0411 secondary air injector incorrect flow. I have read a bit about it but like i said i am new to audi. Im not even sure where to start with it. I know it is located under the air filter box but dont even know what im lookin for. How serious is this problem any help would be great. Thanks

 

Sorry forgot to mention that it is a 2000