EGR stands for exhaust gas recirculation, and the EGR valve is part of a system that does as the name implies: recirculate exhaust gas back into the engine’s intake manifold for a return trip to the ...

Modern internal combustion engines — including those that run on diesel fuel — require a lot of special parts and systems to prevent dumping excess emissions into the atmosphere. Not only are those ...

An EGR delete is seen by many as an easy way to improve performance and efficiency by removing the EGR (exhaust gas recirculation), which is a component that helps in reducing the NOx that is thrown ...

Volvo developed Precision Flow exhaust-gas recirculation (EGR) to improve fuel economy by 3 percent even as they met EPA's 2007 emissions standards for on-road diesel engines. An electronic ...