Conditions For Running DTC

WARNING: This page is about a different car, the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

The engine is operating on alternative fuel.
AF ECM DTCs P0112, P0113, P0117 and P0118 are not set.
This DTC has not tested this ignition cycle.
The engine has been operating for greater than 8.5 minutes.
The vehicle speed is greater than 5 MPH.
The desired gas flow is greater than 0.5 grams per second.
The Intake Air Temperature is greater than 5°F (-15°C).
The engine coolant temperature at engine start-up is 1-91°F (-17-33°C).