Conditions For Running DTC

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0121, P0122, or P0123 not set.
Engine has been running for a period of time that is determined by the start-up coolant temperature. The time ranges from 2 minutes at less than -22°F (-30°C) to one second at more than 86°F (30°C).
Throttle angle is less than 2 percent when engine speed is less than 3000 RPM or throttle angle is less than 30 percent when engine speed is more than 3000 RPM.