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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 57 (Engine Control System Diagnosis (2 Of 2) (HEV)) >> DTC P3190: Poor Engine Power >> System Inspection >> Fuel Line Pressure Inspection

Fuel Line Pressure Inspection

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  1. Check the fuel for excessive water, alcohol, or other contaminants. Replace contaminated fuel as necessary.
  2. Install a fuel pressure gage
  3. Inspect fuel pressure with normal idle status

    Specification:  338~348kPa(3.38~3.48 bar)

  4. Is fuel pressure within the specified value?

    YES 

    • Go to next step as below.

    NO 

    Condition Possible Cause Suspected Area
    Fuel Pressure too low Clogged fuel filter Fuel filter
    Fuel leak on the fuel-pressure regulator that is assembled on fuel pump Fuel Pump (Fuel Pressure Regulator)
    Fuel Pressure too High Sticking fuel pressure regulator Fuel Pump (Fuel Pressure Regulator)