What is the effect of a failing fuel pump on catalytic converters?
How a Failing Fuel Pump Damages Your Catalytic Converter Simply put, a failing fuel pump can destroy your catalytic converter by causing a severe engine misfire or forcing the engine to run in an excessively fuel-rich condition. Both scenarios send unburned gasoline down the exhaust line, where it overheats and melts the converter’s delicate internal …
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