Exhaust gas recirculation - Wikipedia
In internal combustion engines, exhaust gas recirculation (EGR) is a nitrogen oxide (NO x) emissions reduction technique used in petrol/gasoline, diesel engines and some hydrogen …
What Is an EGR Valve and What Does It Do? - Cars.com
Jul 27, 2025 · 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 …
Egr Explained: What It Does And How It Affects Your Car
Jul 6, 2025 · EGR stands for Exhaust Gas Recirculation, a vehicle emissions control concept used in both gasoline and diesel engines. EGR valves are a key component of a car's exhaust …
What Is An EGR Valve And Common EGR Problems To Look Out For
Jul 1, 2025 · Simply put, EGR is short for exhaust gas recirculation. This is one of many initialisms used in the automotive industry for a system, or a component within a system, that is part of the...
The basics of EGRs - what they do, how they work, how to ...
Integral to the vehicle’s engine management system, the aptly named exhaust gas recirculation valve, or EGR valve for short, recirculates finely metered quantities of exhaust gas to the …
What Is an EGR Valve in a Car and What Does it Do? - AutoZone
The EGR valve routes a portion of your exhaust gases into the engine’s intake to reduce combustion temperatures. This helps prevent the formation of Nitrogen Oxides, or NOx, which …
What is an EGR Valve? How Does It Work? A Full Guide
Mar 11, 2025 · EGR stands for Exhaust Gas Recirculation and it is an important part of the vehicle's engine system. You can think of it as a recovery system for the engine. This system …