Alan Lampe
Member
Anybody know what CEL code P0455 refers to? Thanks
CEL Code P0455
- Thread starter Alan Lampe
- Start date
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Fudged Undies
Well-Known Member
There was a tsb regarding the evap canister on the fuel system, though I don't remember what year it covered. Many reported a hose on the canister coming loose. May also be your gas cap.
P0455
EVAP Control System Leak Detected (No Purge Flow or Large Leak)
Detailed Description
The PCM monitors the complete EVAP control system for no purge flow, the presence of a large fuel vapor leak or multiple small fuel vapor leaks. The system failure occurs when no purge flow (attributed to fuel vapor blockages or restrictions), a large fuel vapor leak or multiple fuel vapor leaks are detected by the EVAP running loss monitor test with the engine running (but not at idle).
Possible causes :-
After-market EVAP hardware (such as fuel filler cap) non-conforming to required specifications.
Disconnected or cracked fuel EVAP canister tube, EVAP canister purge outlet tube or EVAP return tube.
EVAP canister purge valve stuck closed.
Damaged EVAP canister.
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 (items also listed under disconnections or cracks).
Fuel vapor control valve tube assembly or fuel vapor vent valve assembly blocked.
Canister vent (CV) solenoid stuck open.
Mechanically inoperative fuel tank pressure (FTP) sensor.
Diagnostic Aids
Check for audible vacuum noise or significant fuel odor in the engine compartment or near the EVAP canister and fuel tank.
P0455
EVAP Control System Leak Detected (No Purge Flow or Large Leak)
Detailed Description
The PCM monitors the complete EVAP control system for no purge flow, the presence of a large fuel vapor leak or multiple small fuel vapor leaks. The system failure occurs when no purge flow (attributed to fuel vapor blockages or restrictions), a large fuel vapor leak or multiple fuel vapor leaks are detected by the EVAP running loss monitor test with the engine running (but not at idle).
Possible causes :-
After-market EVAP hardware (such as fuel filler cap) non-conforming to required specifications.
Disconnected or cracked fuel EVAP canister tube, EVAP canister purge outlet tube or EVAP return tube.
EVAP canister purge valve stuck closed.
Damaged EVAP canister.
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 (items also listed under disconnections or cracks).
Fuel vapor control valve tube assembly or fuel vapor vent valve assembly blocked.
Canister vent (CV) solenoid stuck open.
Mechanically inoperative fuel tank pressure (FTP) sensor.
Diagnostic Aids
Check for audible vacuum noise or significant fuel odor in the engine compartment or near the EVAP canister and fuel tank.
Last edited by a moderator:
Fer Echegaray
Well-Known Member
EVAP Control System Leak Detected
Also Make sure your gas cap is locked tight
Also Make sure your gas cap is locked tight
