FUEL INJECTION CONTROLLER OF INTERNAL COMBUSTION ENGINE

A crankshaft of an internal combustion engine is connected to an automatic transmission mechanism through a torque converter. A difference in a load applied to the crankshaft between a D range and a P range is sensed based on a difference in a command fuel injection amount during idling stabilization control between the D range and the P range. A difference between a fuel amount required by learning control of pilot fuel injection in the D range and a standard command fuel injection amount required for performing the learning control under the load corresponding to the p range is reduced by a fuel injection amount difference caused by the difference of the load. A learning value of the pilot injection is learned based on the reduced difference.