P0108 Map Sensor High P1353 Front Cylinder No Combustion My engine light comes on intermittently and then stays on after about 5 minutes of riding. The engine seems to be running fine, but throws the two codes above. Additionally, I'm only getting around 30 mpg and the first 1/4" of the spark-plugs are black. My setup is as follows; - 2009 Dyna Super Glide - Hypercharger - Demon Cycles 2-in-1 pipes (no baffles, no oxygen sensors) - Power Commander V (Dyno Tuned but not exactly right yet) Questions? 1. What could cause this. 2. How to fix it 3. Is it safe to ride Thx in advance.