Diagnostic Trouble code P0301 shows that Cylinder No. 1 is misfiring but the causes of that can vary greatly. The fuel injector could simply be dead or there is little cylinder compression because of a burned valve or leaky head gasket. Test for power TO the coil as if there is no power to the coil the supply circuit (including the PCM) has to be diagnosed to find the problem. If there is power to the coil,check to see if the fuel injector is functioning and check compression. If you want these steps performed by a certified Mechanic, please have a misfiring diagnostic and a certified mechanic to diagnosed and resolve this for you.