Fuel Feed
The high pressure fuel pump pressurizes fuel sent from the fuel pump up to approximately 20 MPa (200 bar, 204 kg/cm2 , 2900 psi) and pumps the pressurized fuel to the fuel rail. In addition, the high pressure fuel pump has a fuel pressure damper to control pressure fluctuation occurring at rapid acceleration, contributing to the reduction in fuel fluctuation. Since the high pressure fuel circuit does not have a return circuit, the pressure increases up to 27 MPa (270 bar, 275.4 kg/cm2 , 3, 915 psi) due to temperature rise in the high pressure fuel circuit after engine stop or in deceleration mode.