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Home >> Hyundai >> 2004 >> Elantra GLS, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System >> DTC Trouble Shooting Procedures >> DTC P0301: Cylinder 1 - Misfire Detected >> Inspection Procedures >> 5. Check Fuel Line Pressure

5. Check Fuel Line Pressure

  1. Reconnect the ignition coils and the spark plug connectors.
  2. Release the fuel pressure and attach the fuel pressure gauge.
  3. Start the engine and warm it up to normal operating temperature.
  4. Check fuel line pressure at idle.

Is fuel line pressure within specification? 

Yes: Go to next step.

No: Check fuel delivery system. Refer to FUEL PRESSURE TEST .