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Exhaust Gas Recirculation: Description and Operation

Exhaust Gas Recirculation System:





The EGR system aims at reduction of NOx by lowering combustion chamber termperature through recirculation of a part of exhaust gas into cylinders via the collecor chamber. The EGR system consists of the following components:
^ EGR valve
^ EGR control solenoid
^ EGR check valve (turbo only)