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P0456

P0456 - EVAP Control System Leak Detected Very Small Leak

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Possible causes
- Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Evaporative Emission (EVAP) canister or fuel tank leaks
- Evaporative Emission (EVAP) system hose leaking
- Fuel tank leaking
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When is the code detected?
Evaporative Emission (EVAP) control system has a very large leak such as fuel filler cap fell off, EVAP control system does not operate properly.
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors
P0456 Description
This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. If pressure does not increase, the Engine Control Module (ECM) will check for leaks in the line between the fuel tank and EVAP canister purge volume control solenoid valve under the following vacuum test condition.
The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.
P0456 Information for specific makes
P0456 INFINITI
P0456 NISSAN
P0456 SUBARU
P0456 VOLKSWAGEN
P0456 CHRYSLER
P0456 DODGE
P0456 JEEP
P0456 TOYOTA
P0456 ACURA
P0456 HONDA
P0456 FORD
P0456 HYUNDAI
P0456 KIA
P0456 MAZDA
P0456 MITSUBISHI
P0456 AUDI
P0456 2001 DODGE CARAVAN
P0456 2002 NISSAN ALTIMA SEDAN
P0456 2003 NISSAN ALTIMA SEDAN
P0456 2004 NISSAN ALTIMA SEDAN
P0456 2005 NISSAN ALTIMA SEDAN
P0456 2006 NISSAN ALTIMA SEDAN
P0456 2002 NISSAN SENTRA
P0456 2003 NISSAN SENTRA
P0456 2004 NISSAN SENTRA
P0456 2005 NISSAN SENTRA
P0456 2006 NISSAN SENTRA
P0456 2003 INFINITI G35
P0456 2004 INFINITI G35
P0456 2005 INFINITI G35
P0456 2006 INFINITI G35
P0456 SCION
P0456 2005 SCION XB
P0456 2006 SCION XB
P0456 2007 SCION XB
P0456 2004 NISSAN MAXIMA
P0456 2006 NISSAN MAXIMA
P0456 2007 NISSAN MAXIMA
P0456 2008 NISSAN MAXIMA
P0456 2005 NISSAN MAXIMA
P0456 2008 NISSAN ALTIMA SEDAN
P0456 2009 NISSAN ALTIMA SEDAN
P0456 2010 NISSAN ALTIMA SEDAN
P0456 2011 NISSAN ALTIMA SEDAN
P0456 2012 NISSAN ALTIMA SEDAN
P0456 1997 FORD F150
P0456 1998 FORD F150
P0456 1999 FORD F150
P0456 2000 FORD F150
P0456 2001 FORD F150
P0456 2002 FORD F150
P0456 2003 FORD F150
P0456 2001 TOYOTA HIGHLANDER
P0456 2002 TOYOTA HIGHLANDER
P0456 2003 TOYOTA HIGHLANDER
P0456 2004 TOYOTA HIGHLANDER
P0456 2005 TOYOTA HIGHLANDER
P0456 2006 TOYOTA HIGHLANDER
P0456 2007 TOYOTA HIGHLANDER
P0456 2004 TOYOTA PRIUS
P0456 2005 TOYOTA PRIUS
P0456 2006 TOYOTA PRIUS
P0456 2007 TOYOTA PRIUS
P0456 2008 TOYOTA PRIUS
P0456 2009 TOYOTA PRIUS
P0456 2008 NISSAN ROGUE
P0456 2009 NISSAN ROGUE
P0456 2010 NISSAN ROGUE
P0456 2011 NISSAN ROGUE
P0456 2012 NISSAN ROGUE
P0456 2013 NISSAN ROGUE
P0456 2007 NISSAN SENTRA
P0456 2008 NISSAN SENTRA
P0456 2009 NISSAN SENTRA
P0456 2010 NISSAN SENTRA
P0456 2012 NISSAN SENTRA
P0456 2011 NISSAN SENTRA
P0456 2006 TOYOTA CAMRY
P0456 2007 TOYOTA CAMRY
P0456 2008 TOYOTA CAMRY
P0456 2009 TOYOTA CAMRY
P0456 2010 TOYOTA CAMRY
P0456 2011 TOYOTA CAMRY
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