Catalytic Converter: Description and Operation

Three Way + Oxidation Catalytic Converter:

PRECAUTIONS
CAUTION: Prolonged operation with a misfiring or flooded engine may cause the converter to overheat. This could cause damage either to the catalyst itself or the operating vehicle and possible personal injury.

NOTE: When jacking or lifting vehicle from frame side rails, be certain lift pads do not contact catalytic converter otherwise damage to converter may result.

SYSTEM DESCRIPTION
Tailpipe Emissions Control
The catalytic converter is an emission control device added to the exhaust system to effectively reduce tailpipe emission levels of Carbon Monoxide (CO), Hydrocarbons (HC) and Oxides of Nitrogen (NOx).

Catalyst Type
A single bed monolith catalytic converter is used in combination with two different types of catalyst. These are oxidation catalyst and three-way (reduction/oxidation) catalyst. this type of catalytic converter is known as a three way + oxidation catalytic converter.

Catalyst Coatings
The catalysts have coatings that contain platinum and palladium. The oxidation catalyst lowers the level of HC and CO. The three-way catalyst lowers the levels of NOx as well as HC and CO.