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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1149 (Engine Controls And Fuel - 3.6L - DTC P0496 To DTC P2235) >> DTC P0496 >> Repair Verification

Repair Verification

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Start the engine.
  2. Command the EVAP vent solenoid closed with a scan tool.
  3. Increase the engine idle to 1,200-1,500 RPM.
  4. Observe the FTP sensor in H2O parameter with a scan tool.
  5. Verify the FTP sensor parameter is -0.5 to +0.5 inches H2O.
  6. Clear the DTCs with a scan tool.