I just recently had my cel come on and i scanned it when i got to work.. I've noticed that since I've owned the car which is only about 2 months I get this loud clicking sound from the passenger rear? If I am not mistaken I believe one of the evap control valves is located on this side.
View 5 RepliesMy CEL came on a few weeks ago on my 2010 gti, I scanned it and got a code for evap (P0456). I figured it was from filling the tank while the car was running, so I cleared it and went on with my week. About a week later it came back on and when I scanned it, I got the same thing. I haven't had time to smoke test the system but the last couple days i have heard a clicking/tapping noise coming from the rear passenger side of the car. Could the flapper in the filler neck be malfunctioning or gas cap be leaking.
View 2 RepliesIt all started with a fuel cap loose light (it wasn't) after a day or two the MIL came on and got this code I reset it but I'm sure it'll come back since there's probably a real leak. What can I check myself to find this leak?
View 11 RepliesI have a 2005 1.8 TJetta GLI owned for about 2 months now. Gas cap warning pops up then goes away when I turn off the car then check engine light comes on. I've change the gas cap to new oem one changed the purge valve [URL] .... After a couple of weeks same issues again brought it to my mechanic he ran a leak detector and told me that there are Evap leaks. I read somewhere that I might need a need charcoal canister and a fuel tank.
View 12 RepliesMy 2005 Mustang w/ 4.6L is giving a P0456 code and also won't let me fill it with gas completely. I think I've narrowed it down to the canister vent or purge valve. Looking for narrowing down which would cause the gas fill issue.
View 7 RepliesMy Jeep recently came up with a CEL after pumping gas sometime last week. It happened about an hour after so I did some research and they said one solution could be that my gas cap may be lose or needs replacement. I then removed and made sure the cap was secured properly. After about two days the CEL stopped showing up. I just took my Jeep to an AutoZone and was told that the reader was still detecting the issue.
View 9 RepliesMy CEL came on the other day, so I plugged in my scanner. It came up with P0456, saying "Evaporative Emission Control System Leak Detected (very small leak)."
I double checked the gas cap, and it was on correctly. I saw on an OBD code website that the repair urgency is low, but I'm not comfortable with a leak in my fuel system, no matter where it is.
I got gas last week and then my SES light came on. I took it to my local auto parts store and used the code reader. The code that it produced was P0456. The guys at the store wasn't useful because he said it could be as simple as my gas cap needs replacing or a much bigger problem. Should I take it to the dealer or is it something I can fix myself?
View 1 RepliesI have a 2010 Sanata with 69500 miles. I have been getting a P0456 code for some time. I have replaced the gas cap, purge valve and the close vent valve and filter. The code still wont fully erase and keeps tripping the MIL. I have done a smoke test and there are no visible signs of leaking anywhere. What this could be.
One question I have in live data the purge valve never seems to go below 2.7 percent even when the engine is off. it was like that be for and after replacing it.
Could this all be caused by a bad ECU? I was told that in a 2010 Sanata that the ECU is common to fail. When the MIL is on I have 3 of the same code one freeze frame one that triggers the light and one that says permanent. Every time I erase the codes all but the permanent go away. No matter how many times I hit erase or even disconnect the battery it will not go away but the light shuts off.
At roughly 140,000 miles, my wife's '07 Santa Fe GLS has thrown a P0456 code. Does this code on a Santa Fe common?
It is "evaporative emission system leak detected (very small leak)." The good news, I guess, is that it is 'very small.' However, being small may make it more difficult to detect.
Wife's car had a check engine light this morning, code is PO456, small evap leak, I took gas cap off cleaned the filler neck and solenoid the gas cap seal, and reset the light. I filled her car up on Sunday (2011 Sonata 2.4 80000 miles). Where to go next if light comes back on? Purge valve ?
View 9 RepliesI parked my Camry and returned to find a small puddle, and a gas smell. Sure enough it was still dripping (45 minutes later, and made a small puddle 3'x2' on the blacktop)
I have had P0456 code come on sporadically in the 3 months I have owned the car, never seen this puddle. Not sure how to best tackle this one. I shot a short video of it. [URL] ....
What I'm looking at/for? Seems to be dripping from a black plastic accordion hose (cover).
So my car's emission systems light came on last Saturday and after work today I took it to the local Auto Zone to have an onboard diagnostic done to see what the code was, as some friends had recommended. I have a 2004 Ford Taurus with about 146,000 miles on it. It came back as only one code, P0456, which according to the clerk meant one of four things.
1.) Defective, loose, or missing fuel cap
2.) EVAP Canister Broke, hose cracked or not connected
3.) Purge or vent solenoid defective
4.) Vacuum leak at engine
I asked him if there was anyway to eliminate a few of these, but he wasn't sure and said I would have to take it to a dealer or a repair shop (which I expected). I was wondering any tips or tricks so I can eliminate a couple of these, and also if this is a five alarm fire I should be panicking about. I did call my Dad and he did not seem overly concerned about it. Plus my car is still running fine and the light has remained steady and not flashing. My friend at work suggested I put a piece of black electrical tape over it and ignore it, but I want to be sure it passes inspection in September.
Check engine and VSC lights came on wife's car, took to dealer, they hooked up computer and now stating that the Evap system has a leak. They want to replace the Charcoal Canister and they are quoting $900.00.
View 5 RepliesI have a 2006 Sonata with 88,000 miles on it. Currently, and for the past 11 months, the CEL has been on and the code always returned is a p0456, very small evap leak.
I searched for leaks but couldn't find any. I also replaced the purge control valve, but the same p0456 continues to reappear. Of course I also made sure the gas cap was on tight.
I received a coupon from the dealer for a free diagnostic so I took the car in.
The dealer reported the code as p0455, large evap leak, and said the cause was a cracked fuel pump housing. Cost to repair $850. Seems to me the dealer just picked the most costly part to replace, although I can confirm they looked at it because they forgot to screw the access cover back on.
So what I would like to know is how the dealer would have made such a diagnosis? I cleaned and inspected the outside of the pump and saw no crack, but I also understand that the crack may be too small see.
I want to be able to confirm that the dealer's diagnosis is correct, but how can I do that? I have a hand operated vacuum pump and access to shop air to aid in the diagnosis.
I read elsewhere on this site about pressurizing the system and putting soapy water on the area to show bubbles where the leak is, but where would I connect the air hose? And more importantly, what is a safe pressure to use?
Of course tracking down the cause of p0456. I know the charcoal canister could be problem as well, but I'd like to find some way of isolating down the failing component.
My 2007 Sonata continues to throw a P0456 code, small evap leak detected, gas cap is tight, getting ready to check the evap hoses. The question I have is the evap system covered under the emissions warranty at all ?
View 4 Replies2008 with 165K. I had the fuel pump replaced then started getting this code. Garage said they did a smoke test could not find any leak. I then replaced this part (CCV #31453-3K500 / picture attached) I still get the code.
View 2 Replies2009 santa fe 67000 miles. Replaced fuel senders approx a month ago. All was fine. On about the 3rd fill up the cel came on. Code was for small leak evap. checked the gas cap, no problems. Replaced the purge valve and disconnected the battery while doing so. Cel light went off and stayed off thru one tank of gas. Filled up again and thought I detected a little fuel smell shortly after and cel came on again. I only smell fuel when its full and down to just before 3/4's. The light came on right before 3/4's. My husband is beyond frustrated and wants to smash the car lol. Once I get him calmed down where should we be looking for a leak and how to fix it? We can't afford a dealership bill right now and of course it's due for inspection next month.
Code was p0456
The only answer I got in the DIY section is to check around the fuel senders again but I'm leery to do it as I can't see how there would be a leak there, the covers go on SO hard even with that tool.
Recently my 2005 scion tc CEL light came on and I diagnosed p0456. At the same time when I turn the car on in the morning it idles at 2k RPM for about 3 minutes and then the idle goes down to around 900. If I park and return to the car within 2 hours the idle stays down but if I wait it goes back to 2k and I have to wait a few minutes for it to come down. My question is whether this is related to p0456. What could be wrong and how do I fix it?
View 2 RepliesThis is the code i pulled from Vag. Its not the gas cap...
VCDS Release 805.0: Generic OBD2
Mode 03: Emission related fault codes
Address 10 (Engine): 1 Fault Found:
P0456 - EVAP System: Very Small Leak Detected
2004 VW touareg v6 - engine light on - autozone diagnosed as code P0456. Possibly gas cap, so I replaced with aftermarket gas cap from auto zone. Light still on. What can I do or replace to fix problem. I read something about a N60 or N80 valve. Is this something I can buy and replace myself. Most of my mechanical experience is related to working on a 85 CJ7 with an inline 6cyl or Chevy trucks. If the N valve is a easy fix, any instructions and pictures of how to do this.
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