Pajero II Workshop Manual 1991 · FUEL · страница 135 из 339 · Открыть оригинал PDF ↗

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THROTTLE POSITION SENSOR

OPERATION

The throttle position sensor converts the throttle
position opening intoa voltage and inputs it to
the engine control unit, which then controls the
fuel injection based on the input signal.
The5powerinthe engine controlunit is
supplied to the throttle position sensor. Through
the resistor in the sensor,it is earthed in the
engine control unit.
As the throttle valve shaft rotatesfromthe idle
positionto wide open position,the resistance
betweenthe variableresistor terminalofthe
throttle positionsensor and the earth terminal
increasesAsa result thevoltage at the throttle
position sensor variable resistance terminal also
increases

Engine control unit connector

TROUBLESHOOTING HINTS

Hint 1:Thethrottle position sensor signal ismore
important in the control of automatic trans-
mission than in the engine control. Shifting
shock andother troubles will be caused if
this sensor is faulty:

Hint 2: If the output voltage of the throttle position
sensorisoutof specification,adjustthe
sensor and check the voltageagain;If there is
an evidence of disturbed fixed SAS setting;
adjust the fixed SAS.

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