EGR valve is an important of emissions control system in vehicles. Without EGR or Exhaust Gas Re-Circulation, automobiles won’t be able to pass smog. It minimizes the production of NOx.
Once the internal temperature of an engine reaches 2500 F degrees, the process of combustion will start producing NOx or nitrogen oxide. Then, NOx is expelled into the atmosphere through an exhaust pipe. It is known as air pollution once it’s in the atmosphere. Therefore, NOx isn’t good. That is where EGR valve comes in. It is made to decrease the amount of the NOx emissions from the automobiles.…Read more