What Does a Catalytic Converter Do?

Your catalytic converter is named as such because it converts toxins into less harmful byproducts, such as water vapor and carbon dioxide. Without this component, your vehicle will no longer be filtering and reducing harmful emissions, including hydrocarbons, nitrogen oxides, and carbon monoxide.

Can your car run without a catalytic converter?

As a general rule, yes you can drive without a catalytic converter. Driving without a catalytic converter will not damage the engine or the car in any way. However, it may be illegal to drive without a catalytic converter in your state and it is likely that your vehicle will fail an emissions test.

Can you drive a car with a bad catalytic converter?

A bad catalytic converter will give off higher emissions than allowed by the state. So a car with a malfunctioning catalytic converter will not pass a vehicle inspection. And that means you won't be able to drive your vehicle legally.

Marcus Vance

Marcus Vance

Cybersecurity & Digital Privacy Researcher

Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.