Modern vehicles are increasingly designed with systems that reduce harmful emissions, improve efficiency, and comply with environmental regulations. One of the most important of these systems is the Exhaust Gas Recirculation (EGR) system. While the average driver may not think much about it, the EGR system plays a key role in keeping both the vehicle and the environment healthier.
What is the EGR System?
The EGR system is designed to recirculate a portion of a vehicle’s exhaust gases back into the engine’s intake. This process helps to reduce the amount of nitrogen oxide (NOx) emissions, which are a major contributor to air pollution. By cooling and mixing a controlled amount of exhaust gas with fresh air before it enters the combustion chamber, the system lowers combustion temperatures and limits the conditions that create high NOx levels.
How the EGR System Works
The operation of the EGR system is a balance of precision and timing. At certain points during engine operation, the EGR valve opens to allow exhaust gases to flow into the intake manifold. Sensors and the vehicle’s electronic control unit (ECU) work together to ensure that the right amount of exhaust gas is reintroduced without affecting performance. Too little …
