2009 Acura MDX Question I got this along with engine light. When i checked the code it said P0303. I bought sparkplugs and a coil pack. Code mean misfire in Cylinder 3. Cleared the code for a day and a half then it came back this Morning. What else could it be? Please help!

 

SH-AWD will ALWAYS disable when there is a Fuel/Ignition code up.. So do not worry about it.
As per the P0303 I think you need to diagnose all the coil plugs then if everything seems ok you can start to check out: Valve Lash Clearance, EGR Solenoid.