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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (Engine Controls And Fuel - 1.4L (LV7) - DTC P0351 To DTC P2544 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0451-P0454: Fuel Tank Pressure Sensor >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify DTC P0641, P0651, P0697, P06A3, or P06D2 is not set.
    • If none of the DTCs are set 
  3. Remove the fuel cap or install GE-41415-60  for capless fuel fill, if equipped.
  4. Ignition ON, engine OFF.
  5. Verify the scan tool Fuel Tank Pressure sensor parameter is between 1.3 and 1.7 V.
    • If not between 1.3 - 1.7 V 

      Refer to Circuit/System Testing.

    • If between 1.3 - 1.7 V 
  6. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
  7. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • If the DTC does not set 
  8. All OK.
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