Intake Air Temperature Sensor Check
INTAKE AIR TEMPERATURE SENSOR CHECKIntake air temperature sensor 1
1. Disconnect the mass airflow sensor connector.
2. Measure the resistance between terminal No.1 and terminal No.4.
Standard value:
13 - 17 kohms [at -20° C (-4° F)]
5.4 - 6.6 kohms [at 0° C (32° F)]
2.3 - 3.0 kohms [at 20° C (68° F)]
1.0 - 1.5 kohms [at 40° C (104° F)]
0.56 - 0.76 kohms [at 60° C (140° F)]
0.31 - 0.43 kohms [at 80° C (176° F)]
3. If not within specifications, replace the mass airflow sensor.
4. Measure resistance while heating the sensor using a hair dryer.
Normal Condition:
5. If the resistance does not decrease as heat increases,replace the mass airflow sensor.
Intake air temperature sensor 2
1. Disconnect the intake air temperature sensor 2 connector.
2. Measure the resistance between terminal No.1 and terminal No. 2.
Standard value:
13 - 18 kohms [at -20° C (-4° F)]
5.1 - 6.9 kohms [at 0° C (32° F)]
2.0 - 3.0 kohms [at 20° C (68° F)]
0.9 - 1.5 kohms [at 40° C (104° F)]
0.40 - 0.78 kohms [at 60° C (140° F)]
0.23 - 0.42 kohms [at 80° C (176° F)]
3. If not within specifications, replace the intake air temperature sensor 2.
4. Measure resistance while heating the sensor using a hair dryer.
Normal Condition:
5. If the resistance does not decrease as heat increases,replace the intake air temperature sensor 2.