Intake Air Temperature (IAT) Sensor
- Ensure ignition is off. Disconnect electrical connector from intake air temperature sensor. Intake air temperature sensor is located in air intake, near air filter.NOTE: Intake air temperature sensor may be also identified using appropriate illustration in the THEORY/OPERATION article.
- Remove intake air temperature sensor. Place threaded end of intake air temperature sensor and thermometer in container of water. Attach ohmmeter between intake air temperature sensor electrical terminals.
- Heat water and note that resistance is within specification in relation to temperature. See Figure. Replace intake air temperature sensor if defective.