Circuit layout
The gas valve position sensor is not removableand is installed on the throttle body.
This sensor receives a 5-V power supply from thecontroller and transmit a gradually increasing voltage to the same,
with anincrease of the gas valve opening. The controller converts this voltage at anangular position of the valve.
The engine rpm and the gas valve position arethe two basic signals for the engine management.
A failure of this circuit causes the switchingon of the injection indicator and the tripping of the safeties. In
theseconditions, the engine works, even though not in an optimum way, alwayssafeguarding the catalytic converter
integrity.
The gas valve position signal is especiallyimportant at the small valve openings. These areas are also where the
sensorworks more frequently, and therefore they require more frequent checks after ahigh number of kilometres run.
TERMINALS
CONDITIONS
STANDARD
1 - 22
Switch set to "ON"
5 V
11 - 22
Opening the gas gradually
Volt= Progressive increase
1
CONTROLLER
3
AIR TEMPERATURE
SENSOR
2
VALVE POSIT. SENSOR
4
FLUID TEMPERATURE
SENSOR
1
- Connect the diagnostic tester dwg. 020460Y.
Set the switch to "ON" with switch to "RUN" and
side stand raised.
Select the tester menu on the "ERRORS"
function.
Check whether the controller has detected any
failures relating to the gas valve position signal.
YES
go to 6
NO
go to 2
2
- Select the diagnostic tester menu
on the "parameters" function.
Check whether the controller recognises the
extreme positions:
gas valve to minimum
gas valve to maximum
YES
go to 4
NO
go to 3
3
-
Check the adjustment of the gas valve control flexible transmissions. Fix or replace, if
required.
YES
go to 2
4
-
Gradually open the throttle valve, check that the mV value increases progressively and
proportionally with the opening variation.
YES
go to 5?
NO
go to 6
5
-
The gas valve position signal is conforming.
6
- Connect the specific tool dwg. 020481Y to
the injection system.
Do not connect the tool to the controller.
Disconnect the gas valve position sensor
connector.
Check the continuity between the connector's
terminals and the relevant pins on the controller.
Light blue ?green -22 = 0
Ω
(continuity)
Brown-yellow-1 = 0
Ω
(continuity)
Orange-light blue-11 = 0
Ω
(continuity)
PGO BR-500 ENGINE
P.9-79
Pressure sensor
Содержание BR-500
Страница 1: ......
Страница 2: ...INDEX OF TOPICS TIME CHART 12 ...
Страница 13: ......
Страница 14: ...INDEX OF TOPICS PRIOR TO DELIVERY 11 ...
Страница 15: ......
Страница 16: ......
Страница 17: ......
Страница 33: ...PGO BR 500 ENGINE P 10 14 Automatic Transmission ...
Страница 59: ...PGO BR 500 ENGINE P 10 40 Flywheel Cover ...
Страница 61: ... Check that the blow by circuit reed closes properly PGO BR 500 ENGINE P 10 42 Flywheel Cover ...
Страница 65: ...PGO BR 500 ENGINE P 10 46 Flywheel Cover ...
Страница 67: ...PGO BR 500 ENGINE P 10 48 Flywheel Cover ...
Страница 240: ...INDEX OF TOPICS BRAKING SYSTEM 8 ...
Страница 245: ...INDEX OF TOPICS STEERING WHEEL AND SUSPENSIONS 7 ...
Страница 250: ...INDEX OF TOPICS VEHICLE ENGINE 6 ...
Страница 253: ...INDEX OF TOPICS VEHICLE ENGINE 6 ...
Страница 257: ...Transmission Gear box explosive diagram P 6 5 ...
Страница 258: ...P 6 6 ...
Страница 259: ...INDEX OF TOPICS ELECTRIC SYSTEM 5 ...
Страница 272: ...PGO BR 500 ENGINE P 5 14 ...
Страница 273: ...INDEX OF TOPICS COOLING SYSTEM 4 ...
Страница 281: ...INDEX OF TOPICS MAINTENANCE 3 ...
Страница 303: ...INDEX OF TOPICS OPERATION 2 ...
Страница 318: ...INDEX OF TOPICS CHARACTERISTICS 1 ...