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Re: CATALYTIC CONVERTER FAILURE
Posted to Technical Discussion Forum on 7/18/2023 1 Reply

Over fueling can be caused by bad oxygen sensors also. The cats job is to burn unburned hydrocarbons and if it gets too many it will overheat and melt. Earlier this year I replaced a cat on an 04 Jeep that had cheap aftermarket sensors. Replaced the sensors wi... Login to read more.

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