P0455

K : P0455. GROSS LEAK DETECTED.

K1 : CHECK FUEL FILLER CAP FITMENT AND CONDITION OF PIPES AND CONNECTORS.

1. Make sure that the fuel filler cap is correctly installed and tightened. (Minimum 3 clicks).
2. Check the condition of all accessible pipes and connectors in the vapor line.

Are all pipes and connectors in good condition?
Yes
Suspect concern with -
1. Blockage in vapor line. (Engine to fuel tank).
2. Evaporative purge valve stuck closed.
3. Fuel tank assembly.
4. Carbon canister assembly.

No
REPAIR as necessary. CLEAR the DTC. Carry out a full Evaporative system monitor drive cycle, RECHECK DTCs. For additional information, see 'diagnostic drive cycles' above.