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Home >> Chevrolet >> 2017 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 97 (Engine Controls And Fuel - 1.6L (LWC) - DTC P0010 To DTC P0238) >> Diagnostic Information and Procedures >> DTC P0090-P0092, P00C8, P00C9, or P00CA >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the G18 High Pressure Fuel Pump.
    2. NOTE:

    The DMM and test leads must be calibrated to 0 Ω in order to prevent misdiagnosis.

  2. Test for 0.3 - 0.7 Ω at 20°C (68°F) between the high control circuit terminal 2 and the low control circuit terminal 1.
    • If not between 0.3 - 0.7 Ω 

      Replace the G18 High Pressure Fuel Pump.

    • Go to next step: If between 0.3 - 0.7 Ω 
  3. Test for infinite resistance between each terminal and the G18 High Pressure Fuel Pump housing.
    • If less than infinite resistance 

      Replace the G18 High Pressure Fuel Pump.

    • Go to next step: If infinite resistance 
  4. All OK
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