P0455 — EVAP System Large Leak Detected
PowertrainlowThe fuel vapour system has a big leak or is open to air.
Symptoms
- Check engine light
- Fuel smell
Common causes
- Fuel cap missing or not sealing
- EVAP pipe disconnected
- Purge valve stuck
How to fix
- Check the fuel cap first
- Check EVAP pipes
- Smoke test the system
Can I keep driving?
Yes.
These are the general meanings. Some companies use a code a little differently — confirm with a scanner and your car's service manual.