Cirrus V6-2.5L VIN H (1995)
Intake Air Temperature Sensor: Description and Operation
Fig. 11 Intake Air Temperature Sensor And MAP Sensor
PURPOSE
The sensor supplies one of the inputs the PCM uses to determine injector pulse-width.
OPERATION
The intake air temperature sensor (IAT) is located in the intake manifold where it measures the temperature of the air that is about to enter the
combustion chambers.
The IAT is a negative temperature coefficient (NTC) thermistor-type sensor (resistance varies inversely with temperature).
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This means at cold temperatures its resistance is high so the voltage signal will be high.
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At high temperatures, resistance decreases and the voltage will decrease.
This allows the sensor to provide an analog voltage signal to PCM cavity 6.
The IAT sensor threads into the intake manifold Fig. 11.