Throttle Position Sensor - Mitsubishi 1989-1993 GALANT Service Manual

FUEL SYSTEM <SOHC-8 VALVE>
INSTALLATION
(1) Apply sealant 3M NUT locking No.41 71 or equivalent to
threaded portion.
(2) Install engine coolant temperature sensor and tighten it to
specified torque.
Sensor tightening torque: 20-40 Nm (15-29 ft.lbs.1
(3) Fasten harness connectors securely
THROTTLE POSITION SENSOR <I989 models>
voltage
Minimum
Throttle shaft turning angle
OPERATION
The throttle-position sensor functions to convert
l
the degree of opening of the throttle valve to
voltage, and to input that voltage (as signals) to
the engine control module. The engine control
module, based upon those signals, then regu-
The 5V power supply within the engine control
module is supplied to the throttle-position sen-
Maximum
through the resistance
Component side

Throttle position sensor

connector
Engine control module connector
When the throttle valve shaft is rotated all the
way from the idling position to the fully open
position, the resistance between the throttle-
position sensor's variable-resistapce terminal
and the ground terminal also increases in
accordance with that rotation, and, as a result,
the voltage of the throttle-position sensor's
variable-resistance terminal also becomes high-
13-57
01 LO838
with that rotation.