Hello all, while driving my 04 1.8T a few days ago. The car suddenly started sputtering, and acceleration was very hesitant after taking off from a stop light. the CEL came on and was blinking during acceleration, and would just stay lit after holding steady speed. After taking it to Auto Zone to get it checked, the trouble code is P0301, which is cylinder no. 1 is misfiring. I purchased the ignition coil directly from Audi, and swapped the spark plugs. (which seem to be ok). The car accelerates and runs fine now, but the CEL is just steady on. I took the car back to Auto Zone to have it scanned, and the same trouble code comes up, even though the coil has been changed, and the vehicle runs fine. I do hear a slight ticking noise though coming from the engine, but can figure out from where..

Help!!!!!

 

you need to have the codes cleared, and then see if they come back.