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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 58 (ENGINE CONTROLS - SELF-DIAGNOSTICS)DIAGNOSTIC TESTSDTC P0125: ECT EXCESSIVE TIME TO ENTER CLOSED LOOPDTC PARAMETERS
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8

DTC Parameters

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION DTC Parameters
WARNING: This page is about a different car, the 2002 Saturn LW200, 2002 Saturn L200, and 2002 Saturn L100. However, it is still accessible from the selected car via links, so may be relevant.
  • Vehicle has traveled more than 0.5 mile with vehicle speed more than 25 MPH.
  • Calculated average airflow is more than 20 grams per second.
  • Engine run time is between 30 seconds and 30 minutes.
  • Start-up ECT was less than 95°F (35°C).
  • IAT is more than 19°F (-7°C).
  • No CKP, ECT, EVAP leak, fan control, fuel injector, fuel tank pressure, fuel trim, IAT, knock, MAP, misfire, HO2S1, TP, vehicle speed, P0420, P0446 or P1441 DTCs are set.

DTC sets when calculated accumulated airflow has been exceeded (based on predicted airflow) when ECT sensor temperature has reached 104°F (40°C).

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.