Conditions for Setting the DTC
WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
P0102
The ECM detects that the MAF Sensor Signal is less than 1, 500 Hz (about 2.33 g/s) for greater than 1 s.
P0103
The ECM detects that the MAF Sensor Signal is greater than 14, 500 Hz (about 946 g/s) for greater than 1 s.