PGM-FI System Description - Fuel Cut-off Control

Recovery engine speed from fuel cut-off during deceleration 

After warming up, during deceleration with the throttle valve slightly opened from the fully closed position, the powertrain control module (PCM) stops the fuel injection when the engine speed is over the specified value to improve of fuel efficiency.

Fuel cut-off at high engine speed 

To prevent the engine from the damage, the PCM stops the fuel injection when the engine speed is in the limited area (red zone). However, while stopping the vehicle, the PCM stops the fuel injection too. The engine speed to stop is lower than running condition when the vehicle is stopped.

At High Speed Driving 

USA and Canada models 

Mexico models