Pajero II Workshop Manual 1991 · FUEL · страница 42 из 339 · Открыть оригинал PDF ↗

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THROTTLE POSITION SENSOR

OPERATION

The throttle position sensor functions to con-
vertthe degreeofopeningofthethrottle
valve to voltage, and to input that voltage (as
signals) to the engine control unit:The engine
controlunit, baseduponthose signals,then
regulates the amount of fuel injection,etc
The SV power supply within the engine con-
trolunit issuppliedtothethrottleposition
sensor,afterwhichpassesthroughthe
resistance within the sensorandis earthed at
the engine control unit.

When the throttle valve shaft is rotated all the
wayfromtheidlingposition to the fully open
position,theresistancebetween the throttle
positionsensor' Svariable-resistanceterminal
andtheearthterminal alsoincreasesinac-
cordancewith that rotation, and,asa result,
the voltage of thethrottle positionsensor'S
variable-resistanceterminalalsobecomes
higher in accordance with that rotation.

TROUBLESHOOTING HINTS
Hint

The signals of the throttle position sensor are more
important fore control of the automatic transmission
thanforcontroloftheengine;shiftingimpact
shocksare producec if there is a malfunction of the
throttle position sensor.

Hint 2

If the voltage of the throttle position sensor deviates
from the standard value, check onceagainafter mak-
ing the throttle position sensor adjustment: In addition,
if there are any indication that the fixed SAS has been
moved, adjust the fixed SAS.

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