Question about 2004 Volvo XC90
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.
A code p0455 most likely means one or more of the following has happened:
Posted on Oct 06, 2009
EVAP evaporative emissions systems monitoring
This system includes the on-board refueling vapor recovery (OVRV) system with leak detection (LDP) pump.
The ORVR system filters fuel vapor through the EVAP canister to prevent vapor escaping directly into the atmosphere.
The engine Control Module (ECM) determines when appropriate conditions are met and activates the LDP to pump a small amount of air pressure into the fuel tank and lines. The pump runs until a pre-determined pressure or time is reached. If the system does not hold the pressure, a fault or DTC is stored in the ECM.
The area this is located is behind the right plastic rear wheel liner cover. You will see the fuel filler neck from there and the rest of the EVAP system. Visual check for cracks on all the hoses specially the hose clamps. There are 3 lines connected to the Activated charcoal canister (EVAP canister fastened to body) that are detachable and use O-rings for secured sealing. Check if O-rings, if damaged, replace.
Posted on Apr 20, 2010
SOURCE: RX-8 EVAP P0455
This code is very vague as many things can cause this code. The most likely culprits would be: 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
Some possible fixes would be; remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back; 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
Posted on Aug 26, 2009
SOURCE: code p0455 evap emission (large)
have the gas cap tested or just replace it, then disconnect the battery for 5 minutes to reset the code, then drive it for a few miles and see if problem comes back, if it does a trip to the dealer is in order, as this may be covered by your emission warranty which is good for 70,000 miles.
Posted on May 26, 2009
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