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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 147 (Engine Control System Diagnosis - 1.6L (2 Of 3)) >> DTC P0456-00: EVAP. Emission System - Leak Detected (Very Small Leak) >> DTC Information And Inspection >> DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
TroubleShooting Condition Possible Cause
Main Action
  • Monitor the vacuum decay slope
  1. Leakage in each hose/fuel filler pipe
  2. Leakage in CCV/Canister/Fuel tank/Fuel Filler Cap
Prerequisite condition
  • Canister Close Valve close
  • Canister Purge Valve close
  • Common conditions for EVAP. system monitoring
Threshold value
  • FTP gradient is higher than 20~25 Pa/sec
Diagnostic Time
  • 25 sec
MIL
  • 2 Driving Cycle
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