At the fuel injection system, for an internal combustion motor, the overflow together with any leakage and lubricant is returned directly to the tank (5), to be passed into the feed channel to the high pressure pump (7) from the tank. The high pressure pum...

The present invention has an object to effectively prevent deterioration of combustion characteristics when engine temperature is low. There is provided an intake pressure controller 24 that effects control such that, when an operating condition discrimina...