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Spark plug order

(2001 Chevrolet Impala)
in Brattleboro, VT on October 26, 2012
i got a code p0304 witch is miss fire from the spark plugs i just replaced all plugs and cords and it is still there what should i look for to know why the plug is not firing properly
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Popular Answer
on October 27, 2012
Code P0300 is engine misfires so I am going to say that the P0304 you retrieved is a misfire in cylinder number 4. Check the coil for that cylinder both visually and with a DVOM for the proper resistance.
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