[Image of Toyota 2Y emission control diagram]
The Toyota 2Y engine is a 1.6-liter inline-four gasoline engine that was produced by Toyota from 1977 to 1998. It was used in a variety of Toyota vehicles, including the Corolla, Celica, and Corona.
The 2Y engine was designed with a number of emission control features, including:
* EGR (Exhaust Gas Recirculation): EGR reduces NOx emissions by recirculating a portion of the exhaust gas back into the intake manifold. This helps to lower the combustion temperature, which reduces the formation of NOx.
* Catalytic Converter: The catalytic converter is a device that converts harmful pollutants in the exhaust gas into less harmful substances. The 2Y engine uses a two-way catalytic converter, which converts CO and HC into CO2 and H2O.
* Air Injection System: The air injection system injects fresh air into the exhaust manifold, which helps to oxidize CO and HC. This further reduces the emissions of these pollutants.
The Toyota 2Y engine is a reliable and fuel-efficient engine that meets the emission standards of its time. However, it is important to note that these emission control features can be damaged or disabled over time, which can lead to increased emissions. If you are concerned about the emissions of your 2Y engine, it is important to have it inspected by a qualified mechanic.
