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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 39 (Engine Control System Diagnosis - 1.6L (2 Of 3) (Except HEV)) >> DTC P0455: Evaporative Emission System-Leak Detected (Large leak) >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Fuel tank pressure behavior (large leak)
  1. Fuel Filler Cap missing
  2. Leakage in each hose/fuel filler pipe
  3. Leakage in CCV/Canister/Fuel tank
  4. Stuck in each purge hose/pipe between fuel tank and intake manifold
Enable Conditions
  • Canister Close Valve close
  • Canister Purge Valve open
  • Common conditions for evap.system monitoring
Threshold Value
  • Fuel tank's vacuum is higher than -1000pa
Diagnostic Time
  • 15 sec
MIL ON Condition
  • 2 driving cycle
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