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Home >> Hyundai >> 2004 >> Elantra GLS, Standard >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> DTC Trouble Shooting Procedures >> DTC P0451: EVAP Emission Control System Pressure Sensor Range/Performance Problem >> Inspection Procedures >> 3. Check FTPS For Normal Parameters

3. Check FTPS For Normal Parameters

  1. Install the FTPS and monitor the FTPS voltage signal.
    • Specification: approximately 2.5V at idle 

Is FTPS damaged or is the protector cap set? 

No: Proceed with ECM problem procedure.

Yes: Replace FTPS.