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Home >> Isuzu >> 2003 >> Rodeo 2WD L4-2.2L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Description and Operation >> Exhaust Gas Recirculation (EGR) System >> EGR Purpose
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EGR Purpose

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.
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