FUEL SYSTEM
VALVE>
Components
Harness side
Check for continuity of the ground
circuit.
. Connector: Disconnected
Repair the
harness.
INTAKE AIR TEMPERATURE SENSOR
Volume air flow
s e n s o r )
Intake
temperature sensor
Temperature
Volume air flow
sensor connector
Harness side connector
control module
,
Temperature
1621008
OPERATION
l
The intake air temperature sensor functions to
sensor; it passes through the intake air
convert the
temperature of the air
to
ature sensor, which is a type of resistor, and is
the engine) to voltage, and to input that voltage
grounded at the engine control module.
(as signals) to the engine control module. The
Note that the resistance of the intake air
engine control module, based
upon those
perature sensor decreases when the
then corrects the amount of fuel injection,
ture of the intake air increases.
etc.
l
The intake air temperature sensor terminal
l
The
power supply within the engine control
tage becomes higher when the resistance of
module is supplied, by way of the resistance
the intake air temperature sensor increases, and
the
unit, to the intake air
t e m p e r a t u r e
becomes lower when the resistance decreases.
TSB Revision
Summary of Contents for 1989 Galant
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