CEL came on after a couple of driving cycles showing code P0456 (evap emission control system very small leak detected)............. car drives fine has good gas mileage.....
View 13 RepliesMy 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 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 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.
View 1 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 RepliesWife'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 RepliesThrew this code p0442 evap emission control small leak. I see its a popular code to have....
View 14 RepliesNew owner of a 2003 1.8TPassat (29,000mi) as of the last 2 weeks and have just had my MIL come on. Scanned it at home with my Actron CP9125 scanner and got this code (P0455) which reads in the scanners manual as "EVAP Emission Control System Leak (Large)". Didn't know if this was a generic description of the code or VW has a more specific definition. What precisely this is in reference to, gas cap, vacuum hose????? Or what VW's actual description of this code is?
View 3 RepliesI own a 98 f-150 5.4 with 70,000 miles. I get a check engine light (code p0455-large leak detected in evaporative emission control system).
Replaced the gas cap with an after market 'stant' ( I believe was the manufacturer) brand. The check engine light went away for 4 days then came on again.
No obvious vacuum line leaks.... Puzzled.
Got an engine light on today and had it checked at Advance Auto. It is P0442, "small leak in Evaporative emission control system". One article I read said to remove and retighten the gas cap, clear the code then see if it occurs again. If it does then replace the gas cap with a new OEM cap, and try clearing the code again to see what happens, as a first step in the troubleshooting process. I retightened the gas cap, but don't know how to clear the code and turn off the engine light.
View 3 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.
so my girls car is throwing an evap code (P0442) small leak detected. I bought a new oem gas cap and replaced the purge valve solenoid under the hood. that didn't work, CEL still comes on about 100mi after clearing the code.
I have checked the rubber hoses that were attached to the purge valve solenoid when i replaced it and they are fresh, no dry rot or cracks that i can see. The hose on one side goes to a hard line that runs under the car to the back, the hose on the other side of the solenoid runs under the intake to the throttle body. That hose was fine as well. Connections were tight and i even put better clamps on the hose ends that attach to the solenoid. So I have ruled out that portion of the system (under the hood).
I also removed the rear seat to access the fuel pump. All those connections seem nice and tight, I don't smell any strong gas fumes indicating a leak so i don't think the fuel pump gasket is the problem either. Finally, i checked out the hard lines running under the car front to back and I see no apparent or obvious damage. I assume my next step is to pull off the rear passenger wheel well liner and asses the charcoal canister and the LDP connections, correct??
The last thing I will mention is, Idid notice the 2 fuel lines that attach to the fuel regulator are in pretty rough shape, however not leaking any fuel. Are both of these lines actual liquid fuel lines? I am thinking one of them is a vapor return which may be part of the EVAP system. If it's dry-rotted and leaking vapors could that be the culprit??
I had a check engine light cane on. I took it for it to get checked and they gave me this code- P0457 EVAP small leak detected. ECM has detected a large leak in the EVAP System during a system monitor test.
The paper said I had a leak in the Evap canister or hose. I took the truck to a mechanic and was told I had Bad oxygen sensors. Can Bad/Dirty oxygen sensors make this error code come up?
Exactly where the oxygen sensors are? I was told they were behind the mufflers but I didn't see any and the diagram I found was not accurate.
2002 Ford Ranger XLT v6 extra cab.
I have some codes on my ranger 2000 here goes
P0141: o2 sensor heater circuit malfonction (bank 2 sensor 2 )
P0455: evaporative emission control system detected (large leak)
Now I will need to get that fixed cause I don't know where to look and what to look for ... For the leak I know there is a big crack on the plastic where the gas lid is could that be it ?
2009, 89K miles ... As title states, check engine light came on today and after the codes were pulled, I got P0496. It was referred to as "Large EVAP system detected". I'm guessing this may have something to do with the fuel vapor management system but not sure what's a sure bet to check.
View 6 RepliesOkay, so a few weeks ago, my tire blew out on the freeway. Of course my spare wasn't in there and when I got one I couldn't get the lugs loosened. My 4way was too big on all sides. It was late, I am a single mother of two young kids so I had no choice but to drive slowly to get it off the freeway. The next morning I came back fully prepared, got my car in to get a new tire. I have been driving with ONE code for my CEL, but at the shop (where I use to work) I used the scanner and it threw 5 codes.
P0300 Random misfire
P0442 Small EVAP leak detected (this one was already there)
P0420 Catalyst system below threshold bank 1
P0301 Misfire cyl 1
P0303 Misfire cyl 3
My beautiful love is an 02 Jetta 2.0 4 Cyl. Now, since 4 of these codes popped up AFTER my first blowout (I turn 30 next month, knock on wood)
Did driving my car at 5 mph about a mile and a half (everywhere up until the gas station was NO PARKING) do something to my car? All of a sudden, any in town driving ESP IDLING makes my check engine light blink and my car has no power I just have to pull over wherever I am. I checked the car out myself on the side of the road and my cat was glowing. After this I do not drive my car.
So, what should I do. I did a tune up. Should I replace the 02 sensors then the cat?
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.
So mad today. Check engine light came on, plugged in my scanner, got P0441 EVAP Emission Control system Purge Flow Fault and P0455 EVAP Emission Control System Leak (Large).
8-month old '13 TCH XLE is getting a check engine light already.
I have a 130K+ 2002 SC430 in which I recently started to smell gas in the cabin when air vents were set to pull air from outside. Within two weeks, I got the check engine light with two codes, P0440 and P0446, which mean "Evap Emission Control System Malfunction".
In doing some research the check light light could be everything from a gas cap which is not tighened properly, to a bad "charcoal canister " (whatever exactly that is), to a cracked or disconnected "Evap Hose". The only other SC430 related thread I could find on this topic is [URL] ....
If it factors in, I only use 93 octane gas. Interestingly enough, the check engine light came on within 30 seconds of me using the window washer to clean the windshield (at highway speeds), likely a coincidence.
I have a 2008 Chevy Equinox, and recently I noticed a gas smell...I saw Chevy had a special policy to replace the fuel pump module, so I took it to the dealership hoping that would be the problem. Fortunately it was, and they replaced it for free. I got my car back Thursday afternoon, drove it Friday, and it sat yesterday without being driven. This morning I drove to the grocery store, and on the way home my check engine light came on. I have an ODBII scanner, so I plugged it in and got this code:
P0455: Evaporative Emission System Leak Detected (gross leak/no flow)
So I was wondering: (1) what is the cause and/or solution to this problem, and (2) is it possible the dealership caused this problem when they replaced my fuel pump module?
It seems awfully coincidental not to be related to the repair, since it is a fuel system problem, but I don't know enough about cars to be sure...