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2001 Chevrolet Impala Question: spark plug order

 

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tommy143, Brattleboro, VT, October 26, 2012, 09:40
 Rookie

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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  • Answer #1

    Herb Ackside October 27, 2012, 08:02
     Journeyman

    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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