FUEL INJECTION METHOD

According to the apparatus, a coil current value is detected at the time a predetermined time Tr has elapsed since the start of driving of a fuel injection solenoid, and based on the detection value Ir and required driving pulse width Pw required from a necessary fuel quantity, a correction value Pr of a pulse width is obtained. An actual driving pulse width Pout is obtained by correcting the required driving pulse width Pw using the correction value Pr. In this way, a fuel injection quantity is corrected accurately in an injector or injection module that pressurizes fuel to inject.