Pontiac Fiero 1984-1988 Repair Guide

Catalytic Converter

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The catalytic converter is an emission control device added to the exhaust system to reduce pollutants from the exhaust gas stream. The converter uses two types of catalysts to reduce three types of pollutants. The oxidation catalyst is coated with a material containing platinum and palladium which lowers the levels of hydrocarbons HC (unburned fuel) and carbon monoxide CO. The three way catalyst contains platinum and rhodium which lowers the levels of oxides of nitrogen NOx.



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