Conditions For Setting DTC

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 Pontiac Grand Prix, 2002 Pontiac Bonneville, 2002 Chevrolet Monte Carlo, 2002 Chevrolet Impala, and 2002 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

The engine run time is more than 5 minutes, in order to achieve a closed loop temperature of 14°F (-10°C).
The calibrated amount of airflow has been exceeded.
The maximum idle time has been less than 4 minutes.