Emission control device for cylinder fuel injection engine

An exhaust control system for a cylinder fuel injection engine having cylinder injection injectors (15) directly injecting a fuel into combustion chambers (16) and a catalytic converter (19) provided in an exhaust passage (18) from said combustion chambers for purifying an exhaust gas, air/fuel ratio in the combustion chambers (16) is periodically made rich for quicken activation of catalytic converter (19).