Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Chevrolet >> 2006 >> Optra5 LS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.0L (L34 GMDAT) - DTC P0404 To DTC P2110 >> DTC P0446 >> Circuit/System Testing

Circuit/System Testing

  1. Reconnect all previously disconnected EVAP hardware.
  2. Ignition OFF. Connect the J 41413-200  power supply clips to a known good 12-volt source. See Special Tools .
  3. Remove the fuel tank filler cap. Install the GE-41415-50  to the fuel fill pipe.
  4. Install the fuel tank filler cap to the GE-41415-50  .
  5. Ignition ON, engine OFF, with a scan tool, seal the EVAP system.
  6. Turn the nitrogen/smoke valve on the EEST to nitrogen.
    7. IMPORTANT: DO NOT exceed the specified value in this step. Exceeding the specified value may produce incorrect test results.
  7. Use the remote switch to activate the J 41413-200  and pressurize the fuel tank with nitrogen to 5 in H20. See Special Tools .
  8. While observing the FTP sensor parameter with a scan tool, command the EVAP vent valve OFF.
  9. Verify the FTP Sensor parameter is 0 in H2O.
    • If not check for a blockage or restrictions in the EVAP vent hose, or replace the EVAP vent solenoid valve.
scientia non olet · About Mike's Workshop Manuals