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Repair Verification

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine idling, command the EVAP vent solenoid closed with a scan tool.
  2. Increase the engine speed to 1,200-1,500 RPM.
  3. Observe the FTP sensor in H2O parameter with a scan tool. Verify the FTP sensor parameter is -0.5 to +0.5 inches H2O.
  4. Clear the DTCs with a scan tool.
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