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p00300 code ( check engine light ) on 2005 Chevrolet Cobalt SS

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
my car is reading p00300 code not sure it says misfire on cylinder. does anyone know i dont want to change all four coils if not the problem
(1) Answer
Many possibilities here, and if it doesn't point to one cylinder, here is some info: http://repairpal.com/OBD-II-Code-P0300