EGR stands for exhaust gas recirculation, and the EGR valve is part of a system that recirculates exhaust gas back into the engine’s intake manifold for a return trip to the cylinders it just left.

Are you thinking about doing an EGR delete on your truck? Before you do, it's important to know the legal and performance ...

There are times in life when we must endure that which is unpleasant for the greater good of all. And while it may not be high on that list for some, vehicle emissions equipment has certainly become ...

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 ...

Your engine’s manifold absolute pressure (MAP) sensor is your little buddy. Buried somewhere in the stream of your charged intake air (usually in the manifold), it employs a little ceramic or silicone ...

ABSTRACT Exhaust gas recirculation (EGR) is widely used in diesel engines to reduce nitrogen oxide (NOₓ) emissions. However, a lacquer is formed on the EGR valve or EGR cooler due to particulate ...

Various parameters such as intake air mass flow rate, fuel injection quantity and (Exhaust Gas Recirculation) EGR flow rate are affecting the AFR magnitude. In this study a detailed mathematical, ...