Question about 2005 Nissan Xterra

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My sercive enginee light came on and it took it somewhere to let them read it and see what's the problem but they on gave me P0455 EVAP EMISSION (LARGE) so what does that mean?

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It means you have a Large leak in the evap system somewhere.

Posted on Apr 23, 2010

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How to get engine light off with code p0455 for my chrysler 300 2006 touring


code p0455 refers to evaporative emission (EVAP) system--large leak detected===causes--hose connection/s--intake leak---EVAP cannister--EVAP canister purge valve
first check that the filler cap is on correctly ,tight and sealing

Jun 26, 2015 | 2006 Chrysler 300 Touring

2 Answers

I would like to know what the code PO455 on a 2007 Mitsubishi Endeavor means.


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
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking
help.jpg What does this mean? Tech notes
The P0455 it's a very common code, because the code is set if the gas cap is loose or missing. Start by tighten the gas cap and clearing the code. In most cases the code can be clear by disconnecting the car battery for about 30 minutes.
help.jpg What does this mean? When is the code detected?
Evaporative Emission System (EVAP) control system has a very large leak such as fuel filler cap fell off, EVAP control system does not operate properly.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors
P0455 Mitsubishi 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.

Read more: http://engine-codes.com/p0455_mitsubishi.html#ixzz3NlVyARyX

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Dec 30, 2014 | Cars & Trucks

2 Answers

P0455 and p0442


p0455-- emission control system ( a large leak ) the most common cause is a bad seal on fuel cap, remove and replace cap, if light stats on. replace cap. if not the cap it could be any where in emission system. p0442 is--same as above. Code p0442 indicates a fuel vapor leak in the EVAP control system. To fix this problem, remove and reinstall the gas cap. Clear the codes and drive to see if the codes reappear. If the code appears again replace the gas cap or inspect the system for cuts or holes in the tube or hose. good-day !

Aug 24, 2011 | 2002 Jeep Grand Cherokee

2 Answers

P0449 and P0455 error code 2008 2wd gmc envoy 30,203 miles


P0449 - Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction

P0455 - Evaporative Emission Control System Leak Detected (no purge flow or large leak)

Both are refer at EVAP system; other EVAP DTCs: P0440 - P0441 - P0442 - P0443 - P0446 - P0453 - P0455 - P0456

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: 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: 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


Hope helps.

Apr 23, 2011 | 2008 GMC Envoy

4 Answers

Just failed inspection on my 2004 Grand Am (engine light is on) with a fault code P0455. (4C; 2.2L). What kind of damage am I looking at & can I fix this myself? Pretty please help me!


P0455 definition

Technical Description Evaporative Emission Control System Leak Detected (no purge flow or large leak)
What does that mean? 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. you shouldn'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
Try checking the gas cap to see if it is loose. If it is tight then try replacing it. If that doesn't work then there is a hoe somewhere in the evap system. The easiest way to find this kind of leak is with a fogging machine. which means shop which means$$. You can check for yourself. Look for any disconnected hoes,etc. You might be able to hear if there is a vacuum leak when the car is running, it will be a hissing sound. If you can smell gas and the car isn't running, there is a leak somewhere.

Good luck and hope this helped.

Feb 03, 2010 | 2001 Dodge Ram 2500 Truck

3 Answers

What is the error code p0455 on Chrysler Town and Country?


P0455....Evaporative Emission Control System Leak Detected (gross leak
the first thin to check is your gas cap

Nov 14, 2009 | 2003 Chrysler Town & Country

1 Answer

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.

May 26, 2009 | 2004 Nissan Titan

1 Answer

Check Engine Light - Code numbers P1486 & P0455


Found on my jeep that the high quality vac line to the evap bottle had split on the under side.

Aug 14, 2008 | 1999 Jeep Wrangler

2 Answers

Check engine light comes on and goes off


I have a 2006 mazada 6 my check engine light has came on, I took it to Advance Auto and they checked it and it said P0455 Evap Emission Control System Leak (large). What do I need to do?

Jul 16, 2008 | 2006 Mazda 6

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