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:
Operating principle and characteristics of the ride-by-wire system
The engine control system of the diavel uses a ride-by-wire system with
motorised throttle valves. This eliminates all
direct connection with metal cables between the throttle grip and the throttle
valves themselves. Cables are used to
rotate the aps potentiometer, which generates an electric ...
Total distance covered indicator: "odometer"
This function shows the total distance covered by the vehicle (in km or miles
depending on the specific application).
At key-on the system automatically enters this function.
The odometer reading is stored permanently and cannot be reset.
If the distance travelled exceeds 199999 km (or 19 ...
Refitting the lubrication system
Note
Before fitting the pipes (7), it is recommended to check the presence of
the o-rings (e). Lubricate them by using engine
oil.
If the nipples (5) have been removed from the radiator insert a washer (6) on
each nipple (5) and apply specific
threadlocker on threads on the radiator side ...