All cylinder misfire/check engine light flashing

When I have this many codes, I will record all the code info, then erase the codes and drive the car until the check engine light comes on, then recheck the codes. This will eliminate some of the codes that may have been in the memory and are not related to the current problem. Also check that all the intake hoses and pipes are not leaking (vacuum leaks). If you do this and repost the new codes, that will be a bi help.