Exhaust Gas Recirculation (EGR) System: General

• The EGR system aims at reduction of NOx by lowering the combustion temperature through recirculation of a part of exhaust gas into cylinders via the intake manifold.
• The EGR valve is controlled by the ECM according to the engine operating condition.

Fig 1: Exhaust Gas Recirculation (EGR) System Line Diagram

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