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Home >> Kia >> 2004 >> Rio Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Fuel System & Fault Isolation >> DTC Troubleshooting >> DTC P0451: EVAP. Emission System - Pressure Sensor Range Performance >> Verification of Vehicle Repair

Verification of Vehicle Repair

  1. Start the engine and allow it to reach normal operating temperature.
    CAUTION: Evaporative Emissions Systems (EVAP) Leak Tests can be run by the Scan Tool. The tests are automated and provide either a pass-fail result or directions to check for DTCs.
  2. Install scan tool and clear DTC
  3. Perform "EVAP. LEAKAGE TEST" mode referring to the following enable conditions:
    1. Engine at idle (Engine RPM should not change during the test)
    2. No relevant DTC & All accessories should be turned OFF during the test
    3. Fuel level is below 80%
      Fig 1: Display Sample Screen Of EVAP Leak Test
      G07331901
  4. Monitor for pending DTC. Is the same DTC set?

    YES

    1. Go to the applicable troubleshooting procedure.

    NO

    1. System operating to specifications at this time
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