LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Saturn >> 2000 >> SW2 Automatic >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust System >> General Description >> Three Way Catalytic Converter
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Three Way Catalytic Converter

Fig 1: Three Way Catalytic Converter Flow Chart
G01068118Courtesy of GENERAL MOTORS CORP.

The three way catalytic converter is an emission control device added to the exhaust system to reduce pollutants from the exhaust gas stream and requires the use of unleaded fuel only.

The three way catalytic converter coating on the three way (reduction) three way catalytic converter contains platinum and rhodium which lowers the levels of oxides of nitrogen (NOx) as well as hydrocarbons (HC) and carbon monoxide (CO).

Periodic maintenance of the exhaust system is not required. If the vehicle is raised for other service, it is advisable to check the condition of the complete exhaust system.