Volkswagen Repair: 2001 VW Jetta 1.8T, mass air sensor, mass air flow sensor

Question
All of the sudden my check engine light is flashing and my car has the rotten egg smell, too.  I saw the recent post on this but wanted to ask you specifically about the 1.8T.  Little power.   I just had a mass air flow sensor replaced 2 or 3 months ago.  Have 108K miles.  Any ideas?  

Answer
You have a Misfire fault. A P0 300, 301,302,303,304 code set in the computers memory. The smell is raw gas being dumped into the exhaust. The gas is shut of  when the computer sees a misfired cylinder. Shuts fuel off to one cylinder. Most common cause is a secondary ignition coil, Some times the throttle body, May be bad or sometimes cleaning it helps. Then a Vacuum leak after the mass air sensor. Good luck.