Deceleration Fuel Cut-Out

To reduce fuel consumption, the deceleration fuel cut-out is activated when the throttle valve is closed and the engine speed is above approx.1000... 1200 RPM.

The Engine Control module continues to cutout the injection and retard the ignition timing until the engine speed has dropped below the 1000... 1200 RPM cut-in speed.

At and below the cut in speed, fuel injection resumes and the ignition timing is advanced once again. The cut-in speed is dependent upon the engine temperature and the rate of deceleration. (The fuel economy indicator provides a visual demonstration of this function).