FUEL FEED DEVICE FOR ENGINE

PURPOSE:To prevent an air-fuel mixture from coming into being overlean, by detecting a specified operating region where output of a suction temperature sensor shows a higher value than that in the actual suction temperature, while releasing a degree of suction temperature compensation to a fuel feed quantity. CONSTITUTION:When a suction temperature compensating circuit 17 judges a fact that an ignition switch 9 is turned to ON and a warm start from each A/D conversion output N, Tw out of an engine speed sensor 10 and a water temperature sensor 7, it sets a setting value K to a timer, then reads the A/D conversion output of an outside air sensor 11. And stored it into a register To, while it subtracts the setting value K one by one therefrom. The circuit 17 finds a proper suction temperature equivalent value from the To and the Tw, storing the value into the register Ta and outputting, then it compensates a fuel feed quantity from a map 14 at an operation circuit 20 by way of an A/D converter 18 and a function generator circuit 19. Next, when a timer setting value K comes to nil, the circuit 17 outputs the A/D conversion output value Ta of a suction temperature sensor 8 as it is, and compensates it.