Q45 V8-4494cc 4.5L DOHC (VH45) (1992)
Catalytic Converter: Description and Operation
Fig. 41 Three-Way Catalytic Converter
The catalytic converters (2) are emission control devices added to the exhaust system to reduce hydrocarbons (HC), carbon monoxide (CO) and
oxides of nitrogen (NOx) emissions. The converter incorporates a honeycomb mesh coated with three catalysts (platinum, rhodium and palladium).
The catalytic material promotes burning (oxidation) of the pollutants as the gases pass through the converter. The gases are transformed into
non-polluting gases H20 (water) and CO2 (carbon dioxide).