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Home >> Kia >> 2007 >> Rio LX, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures (2 Of 2) >> DTC P0497 EVAP. Emission System-Low Purge Flow >> Component Inspection

Component Inspection

  1. Visual Inspection
    1. Check damage, looseness or poor connection on hoses for the fuel evaporative system.
    2. Has a problem been found?

      YES 

      NO 

      • Go to  2 "Check PCSV" procedure.
  2. Check PCSV
    1. Disconnect a hose between a surge tank and PCSV. (Surge tank side only)
    2. Connect a vacuum gauge to a hose, and apply vacuum.
    3. Is it possible to make vacuum?

      YES 

      • Go to  3 "Check ECM/PCM" procedure.

      NO 

      • Substitute with a known-good PCSV and check for proper operation. If the problem is corrected, replace PCSV and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  3. Check ECM/PCM
    1. Connect scantool on the DLC ( Data Link Connector)
    2. Perform Action Test for Canister Vent Solenoid Valve with scantool
    3. Check clicking sound of PCSV.
      Fig 1: Scan Tool Display - Actuation Test Parameter
      G04862276Courtesy of KIA MOTORS AMERICA, INC.
    4. Is the PCSV normal ?

      YES 

      • Thoroughly check connectors for looseness, poor connection, ending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

      NO 

      • Substitute with a known-good ECM/PCM and check for proper operation. If the problem is corrected, replace ECM/PCM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
      NOTE: There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by ECM/PCM.
      Before or after testing ECM/PCM on the vehicle, use this function to reuse the ECM/PCM