Conditions For Setting DTC
WARNING: This page is about a different car, the 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
Cranking Test
- The AF ECM monitors a GMS actual gas flow signal circuit frequency of less than 250 Hz for at least 0.5 seconds continuously.
Running Test
- The AF ECM monitors a GMS actual gas flow signal circuit frequency of less than 500 Hz for at least 0.5 seconds continuously.