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Ignition and misfires codes

Misfire and coil codes. Pick your code for what it means, whether you can drive, common causes and what the repair usually costs.

CodeWhat it meansDrive?Typical, Boston
P0300Random or multiple cylinder misfiresShort trips$95 to $580
P0301Cylinder 1 misfireShort trips$80 to $350
P0302Cylinder 2 misfireShort trips$80 to $350
P0303Cylinder 3 misfireShort trips$80 to $350
P0304Cylinder 4 misfireShort trips$80 to $350
P0305Cylinder 5 misfireShort trips$80 to $350
P0306Cylinder 6 misfireShort trips$80 to $350
P0307Cylinder 7 misfireShort trips$80 to $350
P0308Cylinder 8 misfireShort trips$80 to $350
P0316Misfire detected during startupShort trips$95 to $580
P0325Knock sensor circuit fault (bank 1)Usually$60 to $290
P0351Ignition coil A circuit problemShort trips$80 to $350
P0352Ignition coil B circuit problemShort trips$80 to $350
P0353Ignition coil C circuit problemShort trips$80 to $350
P0354Ignition coil D circuit problemShort trips$80 to $350
P0355Ignition coil E circuit problemShort trips$80 to $350
P0356Ignition coil F circuit problemShort trips$80 to $350

Typical range, estimate, for the most common repair for each code. Prices updated October 2026. Not a repair shop, estimates only.

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