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Home >> Chevrolet >> 2006 >> Optra5 LS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.0L (L34 GMDAT) - DTC P0404 To DTC P2110 >> DTC P0455 >> Component Testing

Component Testing

  1. Pressurize the EVAP system to 10 inches H20.
  2. Compare the Fuel Tank Pressure sensor parameter with a scan tool to the J 41413-200  EEST pressure/vacuum gage. See Special Tools . The scan tool FTP sensor parameter should be within 1 inch H20 of the pressure/vacuum gage.
  3. Command the EVAP vent valve open with a scan tool.
  4. The scan tool Fuel Tank Pressure parameter should be 0 inches H20.
    • If the FTP sensor parameters do not respond to the change in pressure, replace the FTP sensor.
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