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Home >> Kia >> 2005 >> Rio Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures >> DTC Troubleshooting >> DTC P1166: Ho2S System - Lambda Controller At The Limit (Bank 1) >> Inspection/Repair >> System Inspection >> Check the Engine Oil Contamination

Check the Engine Oil Contamination

  1. Check the engine oil level. The oil level should be between the min. and max. marking. Fill to the correct oil level.
  2. Warm up the engine to normal operating temperature.
  3. Connect Scantool and note the "SHORT TERM FUEL-B1" parameter on the Scantool data list.
  4. Disconnect and plug the positive crankcase ventilation.
  5. Monitor the "SHORT TERM FUEL-B1" parameter on the Scantool data list once again.
    1. Specification: The value should remain more or less unchanged
  6. Is the displayed value within the specification?

    YES

    1. Go to "SENSOR CONTAMINATION INSPECTION " procedure.

    NO

    1. The engine oil is diluted with fuel. Change the oil and oil filter and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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