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Home >> Genesis >> 2021 >> G90 5.0 Ultimate, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Control System Diagnosis - 3.3L (6 Of 9)) >> DTC P0454-00: Evaporative Emission System-Pressure Sensor Intermittent >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Noisy signal check
  1. Poor connection or damaged harness
  2. Faulty FTPS
Enable Conditions
  • Coolant temperature is higher than 40°C (104°F)
  • Ambient Air Temperature (AAT) is higher than -8.25°C (17.15°F)
  • Vehicle speed is slower than 12 km/h (7.5 mph)
  • Fuel level is between 5% and 85%
  • Time after engine starts has passed 100 seconds
  • Barometric pressure (BARO) is greater than 75 kPa
  • Canister load is less than 0.35
  • Minimum canister purge time is greater than 3 seconds in case of canister load is less than 0.1
  • Minimum canister purge time is greater than 25 seconds in case of canister load is greater or equal to 0.1
  • Engine speed is lower than 1500~1650 RPM
  • Gas pedal value is lower than 0.01%. (Pedal is not pushed at all)
  • Differential fuel tank pressure is between -1100Pa and 400Pa
  • Time since last EVAP monitoring test abortion is longer than 60 seconds
  • Barometric pressure gradient is less than -2.0 kPa during uphill driving within 5 minutes
  • Time elapse in case of refueling identification is greater than 600 seconds
  • Battery voltage is greater than 10V
  • Fuel level signal variation is less than 6~8% during waiting and leakage check period
Threshold Value
  • Leak detection test inhibited more than 3 times due to noise in tank pressure signal
Diagnosis Time
  • 14 seconds
MIL On Condition
  • 2 driving cycles