Code Enable Criteria

WARNING: This page is about a different car, the 2001 GMC Savana, 2001 Chevrolet RV Cutaway, 2001 Chevrolet Cutaway, and 2001 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

Engine Coolant Temperature (ECT) is 167-239°F (75-115°C).
Intake Air Temperature (IAT) is 4-194°F (-20-90°C).
Manifold Absolute Pressure (MAP) is 26-90 kPa.
Vehicle speed is less than 85 MPH.
Engine speed is 400-3000 RPM.
Barometric (BARO) pressure is more than 74 kPa.
Mass Airflow (MAF) is 5-90 grams/second.
Fuel level is more than 10 percent.
Throttle Position (TP) is less than 90 percent.
DTCs P0101, P0103, P0108, P0135, P0137, P0141, P0200, P0300, P0410, P0420, P0430, P0440, P0442, P0443, P0446, P0449, P0506, P0507 or P1441 are not set.

DTC sets when average long term fuel trim cell value is more than 23 percent. All conditions are present for 6 seconds.