Ducati Monster 796 Workshop Manual page 236

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Description of the system
Operating phases
Normal operation
When the engine is fully warm, the control unit calculates injection time and ignition advance, by comparing the stored
map values, in accordance with the RPM and throttle position. The calculated quantity of fuel is fed through injectors in
one single sequential delivery to the two cylinders, during the useful cycle.
Starting
When the ignition switch is turned to ON, the control unit feeds the fuel pump for a few moments to put fuel feed
hydraulic circuit under pressure. It receives and processes the throttle position and engine temperature signals. When the
engine is started, the unit receives the engine RPM and timing signals that allow it to proceed with injection and ignition.
To facilitate start-up, the basic mixture is made richer in accordance with the engine temperature. During starting, the
ignition advance is fixed (0°) until the engine starts. When the engine starts, the ECU controls the ignition advance in
accordance with the values stored in the map and makes any necessary corrections according to the air and engine
temperatures.
Acceleration/deceleration
During acceleration, the ECU makes the mixture richer for improved engine performance. Acceleration is detected by
monitoring the speed at which the rider turns the twistgrip to open the throttle. During a rapid deceleration, determined
by the rider quickly turning the twistgrip to close the throttle, the ECU makes the mixture leaner to reduce emissions and
fuel consumption.

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