Conditions for Setting the DTC
WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Condition 1
The ratio between measured and estimated mass air flow is too low. - For greater than 2 s
Condition 2
The ratio between measured and estimated mass air flow is too high. - For greater than 2 s