Circuit Description
WARNING: This page is about a different variant/trim than selected.
The engine control module (ECM) uses the following information in order to calculate an expected airflow rate:
- The throttle position (TP)
- The barometric pressure (BARO)
- The intake air temperature (IAT)
- The engine RPM
If the ECM detects the airflow rate is more than expected, DTC P0068 will set.