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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Controls And Fuel - 1.8L (LUW, LWE) - DTC P0443 To DTC P2635 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0496: Evaporative Emission (EVAP) System Flow >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
NOTE:
  • Vehicle and service department temperature and fuel level (vapor pressure) can affect the fuel tank pressure sensor parameter. Ensure the vehicle temperature has stabilized to service department temperature to ensure greatest accuracy.
  • Be sure the EVAP Purge Solenoid Valve command is 0% or this test will not work.
  1. Ignition ON.
  2. Command the EVAP Purge/Seal function to System Seal or Not Venting with a scan tool.
  3. Engine Running.
  4. Verify the Fuel Tank Pressure Sensor parameter is less than 1.9 V for greater than 90 s.
    • If greater than 1.9 V 

      Replace the Q12 Evaporative Emission Purge Solenoid Valve

    • If less than 1.9 V 
  5. All OK
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