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Home >> Isuzu >> 2003 >> Axiom Base, RWD >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Emission Systems & Sub-Systems >> Exhaust Gas RECIRCULATION System >> Notes
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Exhaust Gas RECIRCULATION System: Notes

The Exhaust Gas Recirculation (EGR) system is used to reduce emission levels of Oxides Of Nitrogen (NOx). NOx emission levels are caused by a high combustion temperature. The EGR system lowers the NOx emission levels by decreasing the combustion temperature.