9000 L4-2290cc 2.3L DOHC Turbo EFI (1992)
Intake Air Temperature Sensor: Description and Operation
Intake air temperature sensor
The temperature sensor is located in the pressure pipe ahead of the throttle body.
The control module measures the temperature in the intake manifold by applying 5 V to the sensor from pin 14 via an integral 2.2 Kilo Ohm resistor.
The sensor is grounded via pin 17.
The voltage across pins 14 and 17 indicates the temperature of the intake air. Together with the engine load signal from LH, this voltage is used to
calculate the boost pressure.
