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Home >> Kia >> 2020 >> K900 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 9) >> DTC P0191-00: Fuel Rail Pressure Sensor Circuit Range/Performance >> System Inspection >> Inspection Procedure >> Check fuel pressure

Check fuel pressure

  1. Ignition "OFF". Disconnect fuel pump fuse in Junction Box.
  2. Start the engine and wait until it stalls.
  3. Ignition "OFF". Connect fuel pump fuse.
  4. Install the fuel pressure gauge to the delivery pipe using the fuel pressure gauge adaptor.
  5. Activate the fuel pump, check for fuel leaks from the pressure gauge or fuel system.
  6. Measure the fuel pressure at idle.
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