Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 134 (ENGINE CONTROLS - SELF DIAGNOSTICS - 4.3L)DIAGNOSTIC TESTSDTC P0125: EXCESSIVE TIME TO ENTER CLOSED LOOP FUEL CONTROLCONDITIONS FOR RUNNING DTC
2006 Chevrolet Suburban K2500, 6.0 U
Conditions For Running DTC
2006 Chevrolet Suburban K2500, 6.0 USECTION 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, P0112, P0113, P0116, P0117, P0118, P0500, P0502, P0503, P1111, P1112, P1114, or P1115 are not set.
- The Intake Air Temperature (IAT) is between 19-131° F (-7-55° C).
- The start-up Engine Coolant Temperature is between -33-83° F (-36-28.5° C).
- The engine running is between 2-35 minutes.
- The vehicle speed is more than 5 MPH for more than 0.5 mi.
- The Mass Air Flow (MAF) average reading is between 15-75 g/s with the average more than 12 g/s.
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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.