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Home >> Kia >> 2020 >> Soul GT Line Turbo >> Repair and Diagnosis >> External Pages >> Different car >> Section 86 (Engine Control System Diagnosis - 2.0L (4 Of 6)) >> DTC P0451-00: Evaporative Emission System-Pressure Sensor/Switch Range/Performance >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

WARNING: This page is about a different car, the 2021 Kia Soul. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
DTC Strategy Case1
  • Monitoring signal stuck In range
  • Poor connector connection
  • Faulty FTPS
  • Faulty PCSV
  • Missing or damaged fuel cap
Case2
  • Signal high with active canister purge monitoring
Case3
  • Signal high with no active canister purge monitoring
Case4
  • Signal low with active canister Purge monitoring
Enable Condition Case1
  • Ambient air temperature model higher than -10°C (14°F)
  • Battery voltage higher than 10V and lower than 16V
  • Fuel level below 85%
  • Vehicle speed higher than 50km/h (31mph)
  • Canister purge flow more than 0.4g/s during uninterrupted 30s
  • Canister load less than 0.5
Case2
  • Ambient air temperature model higher than -10°C (14°F)
  • Engine coolant temperature higher than 50°C (122°F)
  • Battery voltage higher than 10V and lower than 16V
  • Fuel level below 85%
  • 200s since refueling
  • Canister purge flow more than 0.4g/s during uninterrupted 30s
  • Canister load less than 0.5
Case3
  • Ambient air temperature model higher than -10°C (14°F)
  • Engine coolant temperature higher than 50°C (122°F)
  • Battery voltage higher than 10V and lower than 16V
  • Fuel level below 85%
  • Canister purge valve closed
  • 200s since refueling
Case4
  • Ambient air temperature model higher than -10°C (14°F)
  • Engine coolant temperature higher than 50°C (122°F)
  • Fuel level below 85%
  • Canister purge valve closed
Threshold Value Case1
  • Fuel tank pressure variation less than 30mV (100Pa)
Case2
  • Fuel tank pressure higher than 400Pa
Case3
  • Fuel tank pressure higher than 1500Pa
Case4
  • Fuel tank pressure lower than -1100Pa or higher than -3500Pa
Diagnostic Time
  • 0.04s
MIL ON Condition
  • 2 driving cycles