DTC P0455: Notes
DTC P0455 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0455 |
Evaporative emission system leak detected (gross leak/no flow) |
| DETECTION CONDITION |
- P0455 indicates that a substantial leak or blockage has been detected in the EVAP system when there is -1.74 kPa (PID FTP_H2O displays "-7.0" or less vacuum for a 30 seconds evaluation time.
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| POSSIBLE CAUSE |
- After-market EVAP hardware (such as fuel-filler cap) not conforming to required specifications.
- Disconnected or cracked fuel chopping timer tube, CV solenoid valve outlet tube or EVAP return tube.
- CV solenoid valve stuck closed
- Damaged or missing fuel-filler cap.
- Insufficient fuel-filler cap installation.
- Loose fuel vapor hose/tube connections to EVAP system components.
- Blockages or restrictions in fuel vapor hoses/tubes.
- Rollover valve blocked or fuel shut-off valve.
- CV solenoid valve stuck open.
- Mechanically inoperative Fuel tank pressure sensor.
- Damaged charcoal canister.
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