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Home >> Hyundai >> 2009 >> Elantra GLS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures >> DTC P0451 EVAP. Emission System-Pressure Sensor Range/Performance >> Verification Of Vehicle Repair

Verification Of Vehicle Repair

  1. Reconnect all EVAP hardware that was previously disconnected
  2. Start engine to normal operating temperature
    NOTE: 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.
  3. Install scan tool and clear DTC
  4. Perform "EVAP. LEAKAGE TEST" mode referring to enable conditions as below
    NOTE: EVAP. Leakage Test enable conditions
    • Following conditions must be fulfilled to start the test.
    1. Engine warm up at Idle Status
    2. No relevant DTC
    3. Fuel level is below 80%
  5. Monitoring for (pending) DTC. Is the same DTC set?

    YES 

    • Go to the applicable troubleshooting procedure.

    NO 

    • System performing to specification at this time.
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