Fuel Shut-Off System: Description

The fuel shut-off system is used to reduce HC emissions and fuel consumption during deceleration. This system is vacuum actuated and consists of an anti-dieseling solenoid valve, a vacuum switch, a neutral switch (Man. Trans. only), clutch switch (Man. Trans. only), and an inhibitor switch (Auto. Trans. only). A speed detecting switch with amplifier and a fuel shut-off relay are installed on 210 and 310 models.

Fig 1: Schematic of Fuel Shut-Off System (510 & Pickup Models)

Courtesy of NISSAN NORTH AMERICA, INC.

Fig 2: Schematic of Fuel Shut-Off System (210 & 310 Models)

Courtesy of NISSAN NORTH AMERICA, INC.