The catalytic converter is a highly efficient element of the exhaust gas toxicity reduction system (OG) and included in the exhaust system. Inside the working element of the converter, the exhaust gas is afterburned at a high temperature in order to reduce the level of toxic components in them.
When the engine is running, the components of the exhaust system can reach very high temperatures - avoid touching hot components and avoid parking the vehicle on areas covered with flammable objects (fallen leaves, dry grass, debris, etc.).
Do not use leaded gasoline for refueling a car equipped with a catalytic converter - the lead contained in it in a high concentration is deposited on the surfaces of the working element of the converter, significantly reducing its efficiency.
Make sure the engine settings and adjustments are correct. Deviations in the settings of the operating parameters of the ignition, fuel injection and engine management systems can lead to a dangerous over-rich air-fuel mixture, and overheating of the catalytic converter. If a misfire occurs, the operation of the car should be suspended until the causes of the malfunction are eliminated. Fuel that has not warmed up during misfires from the combustion chamber enters the converter, where it can easily ignite (for the same reason, starting the engine by towing or pushing should be avoided).
Watch the fuel consumption, try not to allow it to run out completely, usually associated with the occurrence of misfires.