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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 931 (Engine Controls And Fuel - 6.6L (LMM) - DTC P0016 To DTC P0299) >> DTC P0168 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2007 GMC Sierra, 2007 GMC Cab & Chassis Sierra, 2007 Chevrolet Silverado, and 2007 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the fuel temperature sensor from the engine.
  2. Measure the resistance of the sensor at different ambient temperatures and record results. Compare the results to the Temperatures vs. Resistance Fuel Temperature table. Refer to Temperature Versus Resistance (Fuel Temperature Sensor) or Temperature Versus Resistance (EGT Sensors) or Temperature Versus Resistance (IAT Sensor 1) or Temperature Versus Resistance (ECT Sensors) or Temperature Versus Resistance (IAT Sensor 2) .
    • If the fuel temperature sensor is skewed, replace the sensor.