High Pressure Fuel Pump

WARNING: This page is about a different car, the 2018 Nissan NV3500 HD and 2018 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

The high pressure fuel pump is installed at the front of the engine bank 2 side and activated by the camshaft.

ECM controls the high pressure fuel pump control solenoid valve built into the high pressure fuel pump and adjusts the amount of discharge by changing the suction timing of the low pressure fuel.

Fig 1: Operating Description

Courtesy of NISSAN NORTH AMERICA, INC.

Fig 2: Operating Chart

Courtesy of NISSAN NORTH AMERICA, INC.