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Home >> GMC >> 2011 >> Terrain SLT, 3.0 5, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.0L - DTC P0010 Through DTC P0191 >> DTC P0179 >> Component Testing

Component Testing

  1. Test the fuel composition using the J 44175-A:  Fuel Composition Tester and the J 44175-A Instruction Manual. Record the frequency.
  2. Compare the special tool test frequency and the scan tool Fuel Composition Sensor frequency parameter. The difference between the tool and the sensor should be less than 12 Hz.
    • If greater than the specified value, replace the fuel composition sensor.
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