Conditions for Running the DTC
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
P0191
- Fuel Rail Pressure = Steady State
- Ignition = On
DTC runs continuously when the above conditions are met.
P0192, P0193, P127C
- Ignition = On
DTC runs continuously when the above conditions are met.
P128A, P128B
- DTC P128F, P16E4, P16E5 = Not set
- Ignition On
DTC runs continuously when the above conditions are met.
P16E4, P16E5
- DTC P0641, P0651, P0697, P06A3 = Not set
- Ignition On
DTC runs continuously when the above conditions are met.