P0455
Evaporative Emission System Leak (Large)
System: EVAP
Severity: medium
What does P0455 mean?
The DTC P0455 (Evaporative Emission System Leak (Large)) is a fault code stored by the ECU when it detects a EVAP leak condition in the evap subsystem. It is commonly seen on European and Asian vehicles using Bosch, Continental, Siemens or Denso ECUs.
Common causes of P0455
- Loose fuel cap
- Cracked EVAP hose
- Failed canister vent valve
How to fix P0455
Tighten cap, smoke test EVAP.
Tuning approach with DaVinci Deluxe · Cloud Edition
For P0455, DaVinci Deluxe · Cloud Edition offers the following ECU map adjustments and software solutions:
- EVAP monitor disable
Need to fix P0455 on your ECU?
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