Typical repair cost: $80–$2,000
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Flashing CEL means raw fuel is dumping into the catalytic converter — pull over.
Single-cylinder misfire that can be diagnosed by swapping coils between cylinders.
Fouled or worn plug causes misfire under load.
Lean misfire across multiple cylinders.
No fuel to a cylinder triggers a hard misfire.
A flashing CEL is the highest-urgency engine warning. Stop driving — continued operation destroys the catalytic converter.
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