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Re: CATALYTIC CONVERTER FAILURE
Posted to Technical Discussion Forum on 7/15/2023 3 Replies

I have been in the muffler business since 1979, back before we were replacing cats. If the converter is melted inside it is caused by over fueling, usually a faulty coil, ignition wire or spark plug. Not burning the fuel in one or more cylinders. If it cracked... Login to read more.

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