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Home >> Buick >> 2008 >> Allure CXS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 3.6L - DTC P0335 To DTC P2097 >> DTC P0446 >> Repair Verification
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Repair Verification

  1. Ignition ON, seal the EVAP system with a scan tool.
  2. Turn the nitrogen/smoke valve on the J 41413-200  to nitrogen. See Special Tools .
    3. IMPORTANT: DO NOT exceed the specified value in this step. Exceeding the specified value may produce incorrect test results.
  3. Use the remote switch to activate the J 41413-200  and pressurize the fuel tank with nitrogen to 5 inches H2O. See Special Tools .
  4. While observing the FTP sensor parameter with a scan tool, command the EVAP vent valve OFF.
  5. Verify the FTP Sensor parameter is 0 inches H2O.
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