DTC P0456 EVAP. Emission System-Leak Detected (Very Small Leak): DTC Detecting Condition
DTC DETECTING CONDITION AND POSSIBLE CAUSE
| Item |
Detecting Condition |
Possible Cause |
| DTC Strategy |
- Fuel tank pressure behavior (very small leak)
|
- Fuel line or Evaporative Emission System line leakage check
- PCSV / CCV / Canister / Fuel Tank leakage check
- ECM/PCM
|
| Enable Conditions |
- Time after engine start > 600sec.
- Idle speed controller activated
- Mixture adaptation activated
- Coolant temperature at start - ambient temperature ≤ 6.6 °C (11.88°F)
- Ambient temperature: 4 ~ 35°C (39.2 ~ 95°F)
- Ambient pressure > 680hPa (10 lbf/in2
)
- Fuel level: 6.45 ~ 38.7 L (1.7 ~ 10.2 gal)
- Tank ventilation must be active > 10sec.
- No misfire
|
| Threshold Value |
- Pressure gradient when the intrusive diagnosis activated> threshold f (fuel level)
|
| Diagnostic Time |
|
| MIL ON Condition |
|