ENGINE

An engine includes a fuel injector, a state determination unit (58), an atmospheric pressure sensor and an injection timing control unit. The state determination unit (58) determines whether an engine state is a steady or transient state. The atmospheric pressure sensor detects the atmospheric pressure. The injection timing control unit performs a steady process for calculating a fuel injection timing in the steady state, a transient process for calculating the fuel injection timing in the transient state, and an atmospheric pressure correction process for correcting the fuel injection timing on the basis of the atmospheric pressure. The injection timing control unit changes either whether or not the atmospheric pressure correction process is performed or the contents of the atmospheric pressure correction process, depending on cases when the engine state is the steady or transient state.