Originally Posted by fuddyduddy121
I don't think the catalytic converter is there for NOx. It'* purpose is to reduce hydrocarbons, not NOx.
"Catalytic converters can either be an oxidation or three-way type. Oxidation catalysts convert carbon monoxide (CO) and hydrocarbons (HC) to carbon dioxide (CO2) and water, but have little effect on nitrogen oxides (NOx) and particulate matter. Three-way catalysts operate in a closed-loop system together with a lambda, or oxygen, sensor to regulate the air/fuel ratio on gasoline engines. The catalyst can then at the same time oxidize CO and HC to CO2 and water while reducing NOx to nitrogen.
Most cars today are equipped with a three-way catalytic converter. The term Three-way refers to the three emissions it helps to reduce, carbon monoxide, hydrocarbons or volatile organic compounds (VOCs) and NOx molecules."
The only question is how "today" is a '93? Thats the thing I hate about some manuals. Well sheit was this written in 1950?! Or was it in 2004 and they're being literal with 'today'. Do you know if which one we use? I'm kind of curious now, this was news to me.