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Home >> BMW >> 1998 >> M3 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Fuel System >> Fuel Control >> Catalytic Converter Protection (4-Cylinder)

Catalytic Converter Protection (4-Cylinder)

To prevent overheating of catalytic converter, catalytic converter protection system enriches air/fuel mixture to reduce exhaust gas temperature.