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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 104 (Engine Control System Diagnosis - 2.0L (4 Of 6)) >> DTC P0454-00: Evaporative Emission System-Pressure Sensor/Switch Intermittent >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

WARNING: This page is about a different car, the 2021 Kia Seltos. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
DTC Strategy
  • Electrical monitoring
  • Poor connector connection
  • Faulty fuel tank pressure sensor
Enable Conditions
  • Minimum canister purge time is greater than 20s in case of canister load is less than 0.15
  • Engine idle
  • Gas pedal value is lower than 0.01% (pedal is not pushed at all)
  • Differential fuel tank pressure is between -1100 Pa and 400 Pa
  • Minimum drive time check done one time since engine start (vehicle speed higher than 24 km/h (14 mph) during 90s)
  • Time since last EVAP monitoring test abortion is longer than 320s
  • Barometric pressure gradient is less than 7.5 kPa during uphill driving within 15 minutes
  • 600s since refueling
  • Battery voltage is greater than 10V
  • Fuel sloshing not detected
Threshold Value
  • Fuel tank pressure difference more than 0.018 psi (0.0013bar)
Diagnostic Time
  • 0.12s
MIL ON Condition
  • 2 driving cycles
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