This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine. Symptoms You likely won't notice any drivability problems. Causes A code p0455 most likely means one or more of the following has happened: A loose or improperly affixed gas cap A non-conforming gas cap (i.e. not factory/original brand) Other leak or damaged piece in EVAP system Possible Solutions With a p0455, the most common repair is to: Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back. Otherwise, replace the gas cap, and/or Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary Sources: B. Longo
Yup, check the filler neck for excessive rust. Got rid of that code when I replaced my filler neck. reached in to feel for rust and part of it stayed in my hand. Knew then I had to replace filler neck.
Yup, check the filler neck for excessive rust. Got rid of that code when I replaced my filler neck. reached in to feel for rust and part of it stayed in my hand. Knew then I had to replace filler neck.[/b]
Is there a "how to" for the replacement kicking around somewhere?
Can it be inspected without removing the rear wheel? I took a peek in there yesterday and it looked like the cover could probably be easily removed without too much effort.