The EGR system works by recirculating a small amount of exhaust gas back into the engine's intake manifold. This helps to reduce the temperature in the combustion chamber, which in turn reduces the amount of NOx produced.
The EGR system is typically controlled by a computer, which monitors the engine's operating conditions and adjusts the amount of exhaust gas that is recirculated.
The EGR system can help to improve fuel economy and performance in addition to reducing emissions. This is because the recirculated exhaust gas helps to cool the engine, which in turn reduces the amount of energy that is lost to heat.
The EGR system is an important part of a vehicle's emissions control system. It helps to reduce harmful pollutants and improve fuel economy.
