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Home >> Genesis >> 2021 >> G70 2.0T, RWD, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 2.0L (6 Of 6) >> DTC P2540-00: Low Pressure Fuel System Sensor Circuit Range/Performance >> Component Inspection

Component Inspection

  1. Turn "OFF" the ignition switch
  2. Start the engine.
  3. Measure the voltage between signal terminal of fuel pressure sensor harness connector and ground.

    Specification:  Approx. 1.0 ~ 2.5V (at idle)

  4. Is the measured voltage normal?

    YES 

    • Visually check contamination by foreign material at fuel pressure sensor and Clear DTC and Test-drive under the enable conditions. After the road test, go to "VERIFICATION OF VEHICLE REPAIR ".

    NO 

    • Substitute with a known-good fuel pressure sensor and check for proper operation. If the problem is corrected, replace fuel pressure sensor and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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