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THROTTLE POSITION SENSOR
With the switch set to "ON" at a variable voltage
between 0.7V and > 4V between pins
23 - 3
on
engine-side wiring.
Ground insulation of pins
29 - 32 - 3
on engine-side
wiring
Pins 1(A) - 3(C): Throttle valve closed: approximately 2.5 kOhm; throttle valve open: approximately 1.5
kOhm
Pins 1(A) - 2(B): approximately 1.1 kOhm
Check the continuity between pin 3 of the sensor connector and pin 3 of the engine connector control
unit.
Check the continuity between pin 2 of the sensor connector and pin 32 of the engine connector control
unit.
Check the continuity between pin 1 of the sensor connector and pin 29 of the engine connector control
unit.
Check that the three lines are ground insulated.
Zeroing the throttle
Resetting the throttle valve position signal (TPS reset)
The MIU control unit is supplied with a throttle valve position sensor that is pre-calibrated.
Pre-calibration entails regulating the minimum opening of the throttle valve to obtain a certain flow of
air under pre-set reference conditions.
Pre-calibration ensures optimal air flow to control idling.
This regulation must not be tampered with in any way whatsoever.
The injection system will complete the management of the idling through the Stepper motor and the
variation of the ignition advance.
The throttle body after the pre-calibration has an opened valve with an angle that can vary depending
on the tolerances of the machining of the pipe and the valve itself.
The valve position sensor can also assume various fitting positions. For these reasons the mV of the
sensor with the valve at idle can vary from one throttle body to another.
To obtain the optimum fuel mixture, especially at small openings of the throttle valve, it is essential to
match the throttle body with the control unit following the procedure known as TPS resetting.
With this operation we inform the control unit, as the starting point, of the mV value corresponding to
the pre-calibrated position.
To reset, proceed as follows.
GP 800 i.e.
Injection
INJEC - 29
Содержание GP 800 i.e.
Страница 4: ......
Страница 6: ......
Страница 7: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Страница 15: ...STARTER BUTTON LIGHT SWITCH ENGINE STOP SWITCH TURN INDICATOR SWITCH GP 800 i e Characteristics CHAR 9 ...
Страница 37: ...INDEX OF TOPICS TOOLING TOOL ...
Страница 49: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Страница 67: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL ...
Страница 71: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Страница 134: ...Electrical system GP 800 i e ELE SYS 64 ...
Страница 135: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Страница 151: ...INDEX OF TOPICS ENGINE ENG ...
Страница 185: ...Refitting the hub bearings Place the two shafts as shown in the figure Flywheel cover GP 800 i e Engine ENG 35 ...
Страница 230: ... Be careful and fit the flywheel side crankcase half until there is a complete coupling Engine GP 800 i e ENG 80 ...
Страница 254: ...Engine GP 800 i e ENG 104 ...
Страница 255: ...INDEX OF TOPICS INJECTION INJEC ...
Страница 267: ...Pump supply circuit GP 800 i e Injection INJEC 13 ...
Страница 287: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Страница 324: ...Suspensions GP 800 i e SUSP 38 ...
Страница 325: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Страница 345: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS ...
Страница 346: ...Circuit diagram KEY 1 Rear head outlet 2 To radiator Cooling system GP 800 i e COOL SYS 2 ...
Страница 353: ...INDEX OF TOPICS CHASSIS CHAS ...
Страница 376: ...Chassis GP 800 i e CHAS 24 ...
Страница 377: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...
Страница 381: ...INDEX OF TOPICS TIME TIME ...
Страница 384: ...Crankshaft CRANKSHAFT Code Action Duration 1 001117 Crankshaft Replacement Time GP 800 i e TIME 4 ...
Страница 412: ...Seat SADDLE Code Action Duration 1 004003 Saddle Replacement Time GP 800 i e TIME 32 ...