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Home >> Pontiac >> 2008 >> Torrent GXP, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 150 (Engine Controls And Fuel - 3.6L - DTC P0335 To P2105) >> DTC P0496 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the EVAP purge solenoid valve electrical harness connector.
  2. Start the engine.
  3. Command the EVAP vent closed.
  4. Increase the engine speed to 1,200-1,500 RPM.
  5. Observe the scan tool fuel tank pressure (FTP) sensor parameter. Verify the scan tool FTP sensor parameter is -0.9 to +0.9 mm/Hg (-0.5 to +0.5 in H2O).
    • If not within the specified range, replace the EVAP purge solenoid valve.
  6. Ignition ON, engine OFF, disconnect the EVAP purge solenoid valve pipe.
  7. Observe the scan tool FTP sensor parameter. Verify the FTP sensor parameter is -0.9 to +0.9 mm/Hg (-0.5 to +0.5 in H2O).
    • If not within the specified range, replace the FTP sensor.
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