Hello I had a p0300 code come up on my Audi. Didn't want to deal with it so I parked it for a while. I recently took a look at it. And it seems that my left 3 cylinders aren't firing. I haven't checked for spark on them but I thought at first that it could be my Engine Control Modules thinking that it could be the problem so I swapped them to see if the problem would jump banks. It did not. I'm so confused as to where to go if there is no spark. Any ideas?