Ducati Diavel Service Manual: Introduction to the engine control system
The engine control system used on the diavel consists of the following elements:
- Ride-by-wire system (motorised throttle valves with electric actuator, throttle grip position sensor and throttle valve position sensor)
- One injector per cylinder installed downstream of throttle valve
- One coil per cylinder, in spark plug bore
- Two oxygen sensors (one per cylinder, installed on each exhaust manifold)
- Two absolute pressure (map) sensors installed downstream of throttle valve (one per cylinder connected to each intake duct)
- One three-way catalytic converter for exhaust gas post-treatment
The system also includes conventional sensors for water and air temperature, engine speed-timing etc.
- Specific operating strategies
- Inputs and outputs of engine control unit and connection to can network
- Layout of engine control system and other components
- Removal of the control unit
- Reassembly of the control unit
- Fuel system circuit
- Injection and ignition
- Operating principle and characteristics of the ride-by-wire system
- Explanation of the function of the ride-by-wire system
- Anti-pollution system and auto-adaptive strategy
- Ignition coils
- Injectors
- Throttle valve operation engine
- Engine start button
- Clutch lever button
- Side stand button
- Injection relay
- Throttle valve actuator motor relay
- Starter motor relay
- Radiator fan relay
- Engine speed-timing sensor
- Accelerator position sensor (throttle grip)
- Throttle valve position sensor
- Component assembling position
- Air temperature sensor
- Engine temperature sensor
- Absolute pressure sensors
- Oxygen sensors
Programming/reprogramming keys
The dds diagnosis instrument is required in order to programme/reprogramme
the keys. The key programming procedure
is launched from this instrument.
To start the key programming/reprogramming pr ...
Specific operating strategies
Idle speed
No electric motor is used for idle speed regulation (bypass is modulated
instead with the throttle valve), as idle speed
control is effected by the ride-by-wire system. Idle speed is ma ...
Other materials:
Tool kit and accessories
The tool kit (2) is located under the seat (1) while the owner’s
manual is housed in the compartment under the seat.
The tool kit includes:
Fuse pliers;
Two helmet anti-theft cables;
Screwdriver;
Screwdriver handle;
14/16 Mm box wrench;
6 Mm rod;
3 Mm allen wrench;
4 Mm allen ...
Removing the timing belt driveshaft pulleys
Use the tool code 88713.1805 To hold the driving pulley on the engine
crankcase against rotation.
Important
If this operation is carried out with the engine installed in the frame,
hold the driveshaft pulleys against rotation using the
tool code 88713.2011 Mounted on the alternator cover.
Lo ...
Cylinder compression test
Note
The on-screen icons used during this procedure are explained in a table at
the end of this section.
Engine performance is directly correlated to the pressure that can be
measured in the combustion chambers of the two
cylinders. Pressure which is too high/low or an excessive difference be ...