Golf IV / Jetta IV :: EVAP Code (P0442) Small Leak Detected
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??
Passat (B6) :: Evap Small Leak Intermittent Code P0442 Strikes Again
I've gotten the P0442 "small leak - intermittent" code and "service now" warnings on my 2007 2.0T Passat. I have also occasionally gotten the "check gas cap" warning and icon on the dash, but it always goes away quickly. The car runs fine. The VCDS scan shows as follows:
Address 01: Engine Labels: 06F-907-115-AXX.lbl
Part No SW: 3C0 907 115 S HW: 8P0 907 115 B
Component: 2.0l R4/4V TFSI 0020
Revision: --H14--- Serial number: VWZCZ000000000
Coding: 0404010A19070160
Shop #: WSC 24125 444 85663
VCID: 3041CBF8A31AF19890B
1 Fault Found:
001090 - EVAP Emission Control Sys
P0442 - 001 - Small Leak - Intermittent
[Code] ....
If I clear this code, it comes back within a day or two of driving, but not immediately. I have already replaced the gas cap and N80 valve. The other component I'm aware of possibly failing is the check valve. It's just downstream of the N80 valve, circled in red here:.
I put a vacuum on this part, and it had a very slow leak, losing about 3psi (starting from 20psi) every minute. That seems too small a leak for this to be a problem? Is this thing supposed to be absolutely air tight? Since this part is more expensive ($80) and bit more hassle to replace than the N80 valve, I'd like to know more about this before I just blindly replace it.
If this check valve isn't the problem, then what to check? Although the car runs fine, I need an inspection and would prefer to not have to clear the codes and hope for the best just before taking it in.
Passat (B6) :: Code P0442 - Evap Emission Control Small Leak
Threw this code p0442 evap emission control small leak. I see its a popular code to have....
View 14 RepliesIntrigue :: Code P0442 - Small EVAP Leak
So I have had this code P0442 for a long time and I just kept clearing it. The attached picture (at an angle) shows the hole in the small line attached to the fuel neck filler exactly behind where the plastic wheel well cover touches it. Just ordered a new one from rockauto for about 65 shipped.
View 5 RepliesGrand Prix :: SES Light On / Small Emissions Leak - Code P0442
About a month ago I had my SES light go on and I took it to the auto parts store and they said it was a small emissions leak. I am not sure of the code though. I took my car to the shop and they said that a sensor that had something to do with the exhaust was bad or unplugged.
My SES light came back on about about a week ago and I had it tested and it said the same thing. "Small emissions leak" This time I got the code and its P0442. The shop is closed today and tomarrow so what and where the sensor is located? Or if its the same thing?
Accent LC (2000-05) :: Error Code P0442 Indicating A Leak In Evap Emissions
This began as a troubleshooting exercise for a P0442 code (2002 model) indicating a leak in the evap emissions system. Often caused by simple things like a loose/poorly sealing filler cap. Not this time
It's a neat design, tucked away up in the fender well. Even sports a very effective stone guard (plastic shield) which hides all that tubing from view. But the shield also traps all the road salt and mud and packs it into the crevices between the tubes where it stays from one winter till the next. Even a powerful car wash probably can't dislodge the caked on mess once solidified.
Camry :: OBD Code P0442 - Small Leak In Evaporative Emission Control System
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 RepliesCamry :: P0440, P0441, P0442, P0446 Codes Detected
2003 Camry LE, 4 cyl, 165k miles – Got all of the above codes. Obviously checked gas cap and no issues there. Checked both VSV underhood and had clicking. Checked VSV at canister under vehicle and no clicking. Used a Dremel oscillating tool with flat metal blade to cut off rusted Philips head screw. Removed VSV and checked by jumpering to battery. No clicking, but did draw a tiny arc. That told me it was “trying” to actuate. Sprayed PB Blaster into hose fittings of VSV and mowed the lawn. Came back to VSV and it now actuated – but very slowly and delayed. Sprayed electrical contact cleaner in hose fittings with the VSV jumpered and open. Activated VSV several times and sprayed contact cleaner through the hose fittings several times – both directions. VSV began to active quickly. Put VSV back on vehicle. SES light went out by itself after it ran the EVAP test.
View 3 RepliesFord Super Duty (1999-2016) :: Fault Code P0442 (EVAP) Be Caused By ESOF Vacuum Leak?
I have 2 issues and wonder if they are related. I don't have a CEL but I'm getting a P0442 DTC with my code reader - EVAP system leak detected
Also, my ESOF doesn't work. The hubs will lock manually. Can this be related?
I've already cleared the code and it came back. My ESOF hasn't been working for a while but I just haven't had the time or motivation to look into it until now.
I tried the HVAC Test and there may be a slow leak in the system. I can get the vents to switch from defrost to face vents but it switches halfway back to defrost, both are on at the same time for 20 seconds, then it recovers and goes back to the face vents.
My 4wd relays seem to work as well.
Ford Super Duty (1999-2016) :: 2009 F250 - Code P0442 - Minor EVAP Control System Leak
My 2009 F250 5.4 was throwing code P0442 - minor EVAP control system leak.
The first time it happened, the guy at the parts store checked it out, reset it, and said if it comes back, try replacing the gas cap.
The second time it happened, same thing.
I bought a Stant cap at my local parts shop, and had them reset it again. I don't like the Stant cap since it does not fit the retainer correctly, but it sealed fine.
However, the same code came back.
It took a smoke test to identify a leak from the vent tube on top of the fuel tank. The tube was replaced today.
If the code stays gone for a few hundred miles, I'm going to switch back to the original gas cap. I want to make sure the leak is gone before I change anything.
Sonata NF (2006-10) :: P0456 Code - Small Evap Leak Detected
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 RepliesGolf VI R :: Code P0456 For EVAP System - Very Small Leak Detected
It 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 RepliesGTI 337/20th Anniversary :: Code P0456 EVAP System / Very Small Leak Detected
This 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
Touareg :: 2004 VW V6 - Code 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 RepliesPhaeton :: Code 01583 - Leak In System Detected / Level Fault Error
In the past few weeks I have seen an intermittent "Level Error-Workshop". However every suspension function has worked perfectly, and no height was lost even while sitting at the airport for a week.
How to track down the leak. I can see a tank pressure of about 13 PSI. Is that about right. I did a raise / lower while VCDS was connected and there was a pressure drop to about 11.7 PSI but no level error. What is the correct range of tank pressure settings?
Address 34: Level Control Labels: 3D0-907-553.lbl
Part No: 3D0 907 553 C
Component: LUFTFDR.-CDC- 3C3V0 1122
Coding: 0005521
Shop #: WSC 01065 000 00000
VCID: 2757057592F60B6
1 Fault Found:
01583 - Leak in System Detected
000 - - - Intermittent
Golf V R32 :: Code P1414 And P1424 / Secondary Air Injection System Leak Detected
Secondary air injection system leak detected-Bank 1 & 2... 2003 miles on my car and the CEL pops on this morning. VCV bodies are being replaced tomorrow. The tech didn't fully understand what parameters to test for or what conditions would be present to set this code, I can't say that I do either... the flapper could possibly play a role in this..?
View 5 RepliesFord Ranger / B-Series :: Occasional CEL Indicating Code PO442 - Small Leak Detected?
2001 Ranger-4 Liter-169,000 Odometer Miles ... Over the past year I would get an occasional CEL indicating PO442 Leak Detected (small leak). I would simply erase it. Now it's occurring more frequently at approximately 300 odometer miles.
There must be lots a places for a small leak to develop. But, I am thinking that there might be one or two places that are somewhat common.
Sonata NF (2006-10) :: CEL Code P0456 - EVAP Emission Control System Very Small Leak Detected
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 RepliesFord F-150 - 1997-2003 :: CEL Code P0455 - Large Leak Detected In Evaporative Emission Control System
I 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.