Catalytic Converter: Description and Operation
DESCRIPTIONCalifornia emissions vehicles incorporate two mini catalytic converters as well as the under floor catalytic converter, into the exhaust system. These catalytic converters are made of stainless steel designed to operate at extremely high temperatures. Federal vehicles use a single under floor catalytic converter only.
The stainless steel catalytic converter body is designed to last the life of the vehicle. Excessive heat can result in bulging or other distortion, but excessive heat will not be the fault of the converter. If unburned fuel enters the converter, overheating may occur. If a converter is heat-damaged, correct the cause of the damage at the same time the converter is replaced. Also, inspect all other components of the exhaust system for heat damage.
Unleaded gasoline must be used to avoid contaminating the catalyst core.