Can cylinder misfire Damage the Catalytic converter?

Yes and no both.

In the long-term if the cylinder misfire is severe it will eventually cause the catalytic converter to meltdown on that bank one side. This can cause a loss of power but it will not cause the engine to quit running completely. If the cylinder misfires just light and you can keep the engine light from flashing with a dead cylinder misfire 424 430 malfunction codes only means that the efficiency of the catalytic converter is below threshold. This in itself will not cause the engine to stop running. You should be able to drive this with no worries of a just quitting and not starting.But if you notice cylinder misfire then get the car scanned to retrieve error codes.As per that replace the faulty cylinder misfiring.


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