Charge Air Cooler Temperature (CACT) Sensor

ENGINE CONTROL COMPONENTS

Charge Air Cooler Temperature (CACT) Sensor
The CACT sensor is located in the intake air tube between the charge air cooler (CAC) and the throttle body. The CACT sensor measures the throttle inlet temperature. The powertrain control module (PCM) uses the information from the CACT sensor to refine the estimate of the air flow rate through the throttle and to determine the desired boost pressure. The CACT sensor for a speed density system is integral with the turbocharger boost pressure (TCBP) sensor.

Typical CACT Sensor Integrated With A TCBP Sensor: