Ducati Diavel Service Manual: Air temperature sensor
Introduction
The engine control system on the diavel uses a sensor that measures air temperature. This sensor has a resistance of ntc type (negative temperature coefficient), that reduces its own value when the temperature increases. The air temperature sensor allows the engine control unit to modify the fuel-air mixture and ignition advance in relation to the atmospheric air temperature.
Components assembling position
The air temperature sensor is mounted on the right hand air intake (the image also shows the location of the connection).
Wiring diagram
Ccm engine control connection, s air temperature sensor. 1 Green/blue - g/b, 2 black/purple - bk/v.
In the event of fault
In the event of an air temperature sensor fault, the engine control unit implements a recovery value of 25C.
Fault codes generated and possible correlated faults
Fault codes generated by the engine control unit and displayed by the dds (intake air temperature sensor diagnosis):
- Short circuit to vdc: check integrity of electric circuit and electrical connections.
- Short circuit to ground: check integrity of electric circuit and electrical connections.
- Open circuit: check integrity of electric circuit and electrical connections.
Note
Check integrity of electric circuit - short-circuit to vdc = with dashboard on, using a voltmeter, a voltage is measured between the wire tested and ground.
Check integrity of electric circuit - short-circuit to ground = with the battery cables disconnected, using an ohmmeter, continuity is detected between the wire tested and ground.
Check integrity of electric circuit - open circuit = with the battery cables disconnected, using an ohmmeter, no continuity is detected between the two ends of the wire tested.
The dashboard service display shows the error "air temperature" and the eobd warning light activates.
Possible correlated faults: inadequate engine power, irregular idle speed (target idle speed is 1350 rpm with engine stabilised at operating temperature), the engine does not start easily. Check: -sensor resistance, which must be approximately 2 kohm at 25 C.
The air temperature value may be checked using the dds. Check that the value given is plausible.
If none of the aforementioned tests identify the problem and the air temperature sensor is in proper working order, replace the engine control unit.
Component replacement methods
No special measures are necessary in order to replace the air temperature sensor.
Component assembling position
The throttle valve position sensor is integrated in the throttle valve
actuator motor.
Location of electric connection for throttle valve actuator motor - tps
(throttle valve position sen ...
Engine temperature sensor
Introduction
The engine control system on the diavel uses a sensor that measures the
temperature of the coolant (engine
temperature). This sensor has a resistance of ntc type (negative temperature ...
Other materials:
Refitting the gearchange mechanism
Make sure that the gearchange linkage assembly (6) is installed with the ball
joint with a left-hand thread (a) facing the
lever (8).
Apply the recommended grease to the non-threaded surface of the pin (4).
Fit the first o-ring (5) in the pin (4).
Start the pin (4) in the gearchange leve ...
Abs system operating information
The response of the system is based on the analysis of the speed signals for
front and rear wheels; the system is
automatically deactivated if either of these signals is missing.
Note
In the event of the abs control unit detecting a fault in the abs
electronic management system, it activates ...
Engine
Twin cylinder, four-stroke, 90 "l" type, longitudinal, with
deep sump die-cast crankcase.
Bore, mm: 106
Stroke, mm:
67.9
Total displacement, cu. Cm:
1198
Compression ratio:
11.5В±0.5:1
Max power at crankshaft (95/1/ec), kw/hp:
119 kw/162 hp at 9,500 rpm
Max torque at crankshaf ...