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Home >> Chevrolet >> 2010 >> Traverse LS, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 3.6L - DTC P0192 To DTC P0629/P062B >> DTC P0455 or P0497 >> Circuit/System Testing
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Circuit/System Testing

NOTE:
  • Larger volume fuel tanks and/or those with lower fuel levels may require several minutes for the floating indicator to stabilize.
  • Refer to the J 41413-200:  EEST operation manual for detailed instructions in Evaporative Emission System Diagnosis .
  1. Disconnect the purge tube at the quick connector on the evaporative emission canister side of the Q12 evaporative emission canister purge solenoid valve. Install the CH 48096:  Service Access Port Tool between the disconnected purge tube and the purge solenoid valve. Connect the J 41413-200:  EEST to the service access port tool.
  2. Use a scan tool to seal the evaporative emission system.
  3. Use the flow meter on the J 41413-200:  EEST, calibrated to 0.51 millimeter (0.020 inch) to determine that there is no leak in the evaporative emission system.
    • If a leak is detected, use the J 41413-200:  EEST to apply smoke to the evaporative emission system at the purge tube until the leak is located using the J 41413-SPT:  White Light.
  4. To test for a restriction, connect the J 41413-200:  EEST nitrogen/smoke hose to the to the J 41413-311:  Evaporative Emission Plug brass cone adapter. Disconnect the hose at the fuel cap end of the CH 41415-50:  Adapter. Connect the J 41413-311:  Evaporative Emission Plug to the disconnected hose on the GH 41415-50:  Adapter. Install the CH 41415-50:  Adapter filler neck end only to the vehicle.
  5. Allow the engine to idle.
  6. Use the Purge/Seal function to seal the system with a scan tool.
  7. Command the EVAP Purge Solenoid Valve to 30 percent.
  8. The vacuum/pressure gage on the J 41413-200:  EEST and the fuel tank pressure parameter on the scan tool should both show vacuum.
    • If the vacuum/pressure gage shows vacuum, but the fuel tank pressure parameter does not show vacuum, replace the fuel tank pressure sensor.
    • If neither the fuel tank pressure parameter nor the vacuum/pressure gage shows vacuum, repair the restriction in the purge path.
  9. Verify that the vacuum increases to the abort limit on the scan tool or more than 3.2 V, and the values are similar between the scan tool and the vacuum/pressure gage on the J 41413-200:  EEST.
    • If the values are not similar, or the voltage did not reach 3.2 V, replace the B150 fuel tank pressure sensor.
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