2009 mustang v6 just driving one day started to Hitch and run real rough and misfire hooked it up to the computer it threw code p0172 p0300 301-302-303-304-305-306 says all cylinders were misfiring does anybody have any idea what would cause that. I've dealt with a lot of misfires before but I've never had all cylinders misfiring

 

Clear the codes and see which one pops up first. That fist code is sometimes the root cause. Other thing could be your timing is off (messed up chain tensioner or timing guide). Could also be the crank sensor is bad, so the timing is off, thus the misfire.