Evaporative Emissions System: Description

System prevents discharge of evaporative gas from fuel tank into atmosphere. It is instead conducted to air cleaner housing and burnt in combustion chambers. No canister or adsorbent is used. All models use a sealed fuel tank cap, breather hoses and a modified air cleaner unit. Early 1973 sedans and station wagons use an air breather valve, while later models do not. All station wagons models have two reservoir tanks and later sedan and coupe models have an orifice in air breather tube.