Conditions For Running DTC

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, and 2002 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.

No Manifold Absolute Pressure (MAP) sensor DTCs P0106, P0107 or P0108.
No Throttle Position (TP) or Accelerator Pedal Position (APP) sensor DTCs P0121, P0122, P0123, P1120, P1125, P1220, P1221, P1514, P1515, P1516, P1517, or P1518.
No crankshaft position sensor DTCs P0335 or P0336.
The ECT is greater than 95°F (35°C).
The TP sensor angle is 5-100 percent.
The engine speed is greater than 1000 RPM.
The MAP is 40-100 kPa.
All of the above conditions are met for two seconds.