Small engine layered catalyst article and method of making

A method of making a catalyst article comprising:

• forming a first catalytic layer on a carrier by depositing a slurry on the carrier or, optionally, on a refractory metal oxide undercoat adhered to the carrier, the slurry comprising an oxygen storage component that provides about 50-90% by weight of the oxygen storage component in the first catalytic layer and a palladium component, wherein the palladium component is substantially the only platinum group metal component in the first catalytic layer, and wherein the palladium component is present in an amount sufficient to provide about 2-5% by weight of the palladium component in the first catalytic layer;
• drying the first catalytic layer;
• forming a second catalytic layer on the first catalytic layer by depositing a slurry on the first catalytic layer, the slurry comprising a rhodium component associated with a thermostable oxygen storage component support, wherein the rhodium component is present in an amount sufficient to provide about 0.2-1% by weight of the rhodium component in the second catalytic layer, and;
• drying the second catalytic layer.