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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 48 (Engine Control System Diagnosis - 2.0L (3 Of 3) (Except HEV)) >> DTC P2540: Low Pressure Fuel System Sensor Circuit Range/Performance >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

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Item Detecting Condition Possible cause
DTC Strategy
  • Monitor the fuel pressure sensor's signal
  1. Poor Connection
  2. Fuel pressure sensor
Enable Conditions
  • Target fuel pressure is higher than 250 kpa and lower than 600 kpa.
  • Engine Running
  • Battery voltage is higher than 10 V
Threshold value
  • The signal change of fuel pressure sensor is higher than 120 kPa (17.4 psi) during 5 ms.
Diagnosis Time
  • 10 sec
MIL On Condition
  • NO MIL
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