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HOMESERVICE MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 133 (ENGINE CONTROLS SELF-DIAGNOSTICS - 4.3L)DIAGNOSTIC TESTSDTC P0125: EXCESSIVE TIME TO ENTER CLOSED LOOP FUEL CONTROLCONDITIONS FOR RUNNING DTC
1998 Chevrolet Suburban K2500, 7.4 J, Part Time

Conditions For Running DTC

1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION Conditions For Running DTC
WARNING: This page is about a different car, the 2002 GMC Savana and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
  • DTCs P0100, P0101, P0103, P0110, P0111, P0112, P0113, P0116, P0117, P0118, P0125, P0500, P0501, P0503, P1114, or P1115 are not set.
  • The minimum Intake Air Temperature (IAT) is 19°F (-7°C) or more.
  • The start-up coolant temperature is less than 104°F (40°C).
  • The engine running is more than 2 minutes and less than 17 minutes.
  • The vehicle speed is more than 5 MPH for more than 0.5 mi.
  • The Mass Air Flow (MAF) average reading is more than 15 g/s.
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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.