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Home >> Hyundai >> 2017 >> Accent Value Edition >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) >> DTC P0133: O2 Sensor Circuit Slow Response (Bank 1/Sensor 1) >> System Inspection >> Check Fuel Pressure
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Check Fuel Pressure

  1. IG KEY "OFF".
  2. Disconnect fuel pump relay from junction box in passenger compartment.
  3. Start engine and await until engine is off and then, IG "OFF"
  4. Connect fuel pump relay again.
  5. Connect fuel pressure gauge on the fuel filter with fuel pressure gauge adaptor.
  6. Start engine again and measure fuel pressure.

    Specification:  429 ~ 469 kPa (4.38 ~ 4.79 kgf/cm2 , 62.3 ~ 68.1 psi)

  7. Is the fuel pressure normal?

    YES 

    • Go to Component Inspection procedure below.

    NO 

    • Check any damage of fuel return hose or pipe.
    • Check any stuck of the valve in the fuel pressure regulator.
    • Repair or replace as necessary and then, go to "Verification of Vehicle Repair " procedure.