Fuel Shut-Off System: Description

The fuel shut-off system is used to reduce HC emissions and fuel consumption during deceleration. The system consists of an anti-dieseling solenoid valve, a vacuum switch (Pickup, Non-M.P.G. Sentra, 210 and 310), a neutral switch (Man. Trans. Exc. Stanza), clutch switch (Man. Trans. Exc. Stanza), and an inhibitor switch (Auto. Trans. Exc. Stanza).

In addition, a speed detecting switch with amplifier and a fuel shut-off relay is used on Sentra (Exc. M.P.G.), 210 and 310. An electronic control unit and relay is used on Sentra M.P.G. An engine revolution switch and throttle valve switch is used on Stanza.