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:
Refitting the camshafts
If the stud bolts (2) were removed, apply the recommended threadlocker to the
short end of the stud bolts (2), i.E. The
end that is to be screwed into the cylinder head. Tighten the stud bolts (2) to
a torque of 10 nm (min. 9 Nm - max. 11
Nm) (sect. 3 - 3, Engine torque settings).
Check t ...
Steering head: front fork
Screw
Screw
Steering head
Bottom yoke
Left fork leg assembly
Right fork leg assembly
Counter nut
Damper assembly
Bush
Spring
Preload tube
Collar
Washer
Top cap assembly
Screw
Washer
Adjuster screw
Special washer
Fork tube + calliper unit
Dust cap
Sealin ...
Reassembly of the gearbox shafts
Figure 1 shows all the parts to be reassembled on the gearbox primary shaft
(2), with the calculated end shims (1) and
(11) (sec. 9 - 9.2, Reassembly of the crankcase halves).
Figure 2 shows all the parts to be installed on the gearbox secondary shaft
(25), with calculated end shims (15) a ...