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P00300 code ( check engine light )

(2005 Chevrolet Cobalt SS)
in Plainfield, IL on February 16, 2010
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
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Popular Answer
on February 16, 2010
Many possibilities here, and if it doesn't point to one cylinder, here is some info: http://repairpal.com/OBD-II-Code-P0300
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