Conditions For Running DTC

WARNING: This page is about a different car, the 2002 Pontiac Sunfire, 2002 Pontiac Grand Am, 2002 Oldsmobile Alero, and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0105, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0125, P0201-P0204, P0300, P0301-P0304, P0336, P0440, P0446, P0452, P0453, P0506, P0507, P0601, P0602, P1441, or P1621 are not set.
The Engine Coolant Temperature (ECT) is more than 158°F (70°C).
The engine speed is 1750-3500 RPM.
The engine is operating in closed loop.
The Throttle Position (TP) angle is 10-30 percent.
The Evaporative Emissions (EVAP) control system is commanded open for more than 36 percent.
The purge learned memory is more than approximately 0.78.
The fuel level is more than 10 percent.
The diagnostic completes when 30 seconds of accumulated time has been spent in the above conditions.