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Home >> Subaru >> 1992 >> Legacy Sport >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Emission Systems >> Exhaust Gas RECIRCULATION (EGR) >> Justy (Carbureted), Loyale & SVX

Justy (Carbureted), Loyale & SVX

EGR lowers oxides of nitrogen (NOx) exhaust emissions by admitting exhaust gases back into intake system. Exhaust gases lower peak combustion temperatures, which lowers NOx emissions.