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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 9 (ENGINE CONTROL SYSTEM - 8.1L - DTC P0030 TO DTC P0171)DTC P0128CONDITIONS FOR RUNNING THE DTC
2006 Chevrolet Suburban K2500, 6.0 U

Conditions for Running the DTC

2006 Chevrolet Suburban K2500, 6.0 USECTION Conditions for Running the DTC
WARNING: This page is about a different variant/trim than selected.
  • DTCs P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0120, P0220, P0502, P0503, P2135 are not present.
  • The start-up ECT is less than 74°C (165°F) when the intake air temperature (IAT) is more than 10°C (50°F).

    OR

    The start-up ECT is less than 50°C (122°F) when the IAT is between -7 and +10°C (+19 and +50°F).

  • The fuel ethanol is less than 87 percent.
  • The IAT sensor parameter is between -7 and +55°C (+19 and +131°F).
  • The engine run time is between 120-1,370 seconds.
  • The vehicle speed is more than 8 km/h (5 mph) for more than 2.5 km (1.5 miles).
  • The mass air flow (MAF) is between 20-75 g/s with the average more than 10 g/s.
  • DTC P0128 runs one time per drive cycle when the above conditions are met.
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.