Protege L4-1839cc 1.8L DOHC (1990)
Intake Air Temperature Sensor: 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
