Air Temperature Sensor ( Ambient / Intake ): Description and Operation

The Intake Air Thermosensor is an integral part of the airflow meter. This input signal is utilized by the ECU in it calculations for these outputs:

Fuel injection quantity
Idle speed control
Purge control solenoid valve
Pressure regulator solenoid valve

Normal sensor resistance measurements are as follows:

K OHMS AIR TEMP.

13.6 - 18.4 -20°C / -4°F
2.21 - 2.69 20°C / 68°F
.493 - .667 60°C / 140°F