Conditions For Running DTC

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0121, P0122, P0123, P0131, P0132, P0133, P0134, P0135, P0137, P0138, P0140, P0141, P0151, P0152, P0153, P0154, P0155, P0171, P0172, P0174, P0175, P0200, P0300, P0325, P0327, P0335, P0336, P0341, P0442, P0443, P0446, P0452, P0453, P0455, P0502, P0503, P0506, P0507, P1133, P1134, or P1153 are not set.
The intake air temperature (IAT) is between 5-185° F (-15-85° C).
The Barometric pressure (BARO) is more than 10.7 psi.
The engine is operating.
The Engine Coolant Temperature (ECT) is more than 158-248° F (70-120° C).
Since the end of the last idle period, the engine speed is more than 900 RPM for 40 seconds for manual transmissions, or 45 seconds for automatic transmissions.
The Closed Loop fuel control is enabled.