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.
The engine has been operating for greater than 2 seconds.
No AF ECM DTCs are set. DTCs P1215, P1432 and P1433 may be set.
The engine MAP is less than 45 kPa.
The TP sensor angle has changed less than 2 percent for 2 seconds continuously.