2.0L Recurring CEL - EVAP Leak Detected

[AudiSportB5S4]

I'm posting on behalf of my sister in law's car which keeps getting a CEL for small leak detected - EVAP. The first night she came over for it I figured it was a gas cap thing and I cleared the light and it came back she said a few days later which was probably a few hundred miles driven.

Has anyone dealt with EVAP leak codes that keep coming back? What is usually the next step in diagnosing it?

[SLYCAT]

Just might be the N80 valve, is the code 0456?

[AudiSportB5S4]

Just might be the N80 valve, is the code 0456?

I'll grab the code again and post it up, thanks!

[AudiSportB5S4]

Address 01: Engine Labels: 06F-907-115-AXX.lbl
Control Module Part Number: 8E0 910 115 P HW: 8E0 907 115 D
Component and/or Version: 2.0l R4/4V TFSI 0020
Software Coding: 0104010A190F0120
Work Shop Code: WSC 08353 444 84413
VCID: 2E591541C087
3 Faults Found:

001090 - EVAP Emission Control Sys: Small Leak
P0442 - 001 - Upper Limit Exceeded - MIL ON
Freeze Frame:
Fault Status: 11100001
Fault Priority: 0
Fault Frequency: 2
Mileage: 164426 km
Time Indication: 0

Freeze Frame:
RPM: 1583 /min
Load: 62.3 %
Speed: 58.0 km/h
Temperature: 82.0°C
Temperature: 27.0°C
Absolute Pres.: 990.0 mbar
Voltage: 13.970 V

001110 - EVAP System: Very Small Leak Detected
P0456 - 001 - Upper Limit Exceeded - MIL ON
Freeze Frame:
Fault Status: 11100001
Fault Priority: 0
Fault Frequency: 1
Mileage: 165257 km
Time Indication: 0

Freeze Frame:
RPM: 1848 /min
Load: 41.6 %
Speed: 68.0 km/h
Temperature: 86.0°C
Temperature: 21.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.224 V

001109 - EVAP System: Large Leak Detected
P0455 - 001 - Upper Limit Exceeded
Freeze Frame:
Fault Status: 01100001
Fault Priority: 0
Fault Frequency: 1
Mileage: 165617 km
Time Indication: 0

Freeze Frame:
RPM: 1433 /min
Load: 16.9 %
Speed: 54.0 km/h
Temperature: 81.0°C
Temperature: 27.0°C
Absolute Pres.: 990.0 mbar
Voltage: 13.589 V

[greensto]

What does the P0442 code mean?

[SLYCAT]

Definitely sounds like the N80, it's a cheap fix about $20 something at the stealership and you can DIY. Pull it off and if you can blow thru it then it is faulty, you should not be able to.

[greensto]

Replaced my N80 valve 18 months ago and still have small evap leak P0442

[AudiSportB5S4]

Hmm.. So test the N80 consensus is?

The one that is weird is "Large leak detected"...

[saizero]

The Large leak for me was caused by the EVAP Purge Valve/N80. it was so bad I couldn't start the car right away after every gas fillup.

hope this helps.

[AudiSportB5S4]

Thanks man.. Will start with the N80 valve then for sure.. Clear the codes and see how it runs and what comes back

[jimrobbington]

any updates? I am pulling the p0455 code for large leak as well. Was it the n80?

[AudiSportB5S4]

any updates? I am pulling the p0455 code for large leak as well. Was it the n80?

Crap.. Totally said I'd come back and report the findings... It was indeed the problem replacing the N80 took care of all the codes. When the old one was pulled out I was able to blow through it as some have said that was a way of testing it. The new one I wasn't able to and the car idled better and the codes have been gone since.

[CorneliusRox]

good to hear. good to know.

[Mc Suly]

Something with that N80 for sure.

had the same code on my 1.8t and it was an easy fix

[jimrobbington]

Wonderful! N80 fixed my issue as well.

[greensto]

Still get the CEL for a P0442 small evap leak. 2 months light comes on, 2 months light goes off without doing anything... Not sure where the evap leak is coming from. As previously mentioned, I changed my N80 valve. Still have the issue.

[jimrobbington]

You might want to check this thread out here:

http://www.audizine.com/forum/showth...Detection-pump

Might have to delete the evap canister, or replace it.

[greensto]

Yes. I have a feeling I will be doing this EVAP fix soon :( Thanks for the link, jim

[audinewguy]

i had the same prob. it would go away like every 60 miles or so. swapped the n80 out and next time it went away it never came back.

[null]

OK - I'm having the same issue. Car drives 100% the same. I only have 0442 code keep coming up. Initially I had another code, I believe p0441 very small leak - but after clearing it went away. 0442 is persistent and I can't shake it - cleared 3 times already.

I took off the driver side rear wheel fender liner and inspected the hoses and the pump - nothing that i could see as far as loose, or holes etc. I even took some clear silicone and covered the hose that had something just remotely looking like a scratch or something.

I changed the gas cap seal. Brand new seal, and i noticed a thin small springy wire showing up from the side where you put in the pump. It was unusual - I don't think I ever noticed it before but I didn't really look too hard there. What is it for?


I'm getting really frustrated with this. Anybody - please help!

[shadowinstallz]

Op did you ever get this resolved? 001109 is the code I am getting...I have already changed gas cap . n80 and leak detection pump

Sent from my Nexus 4 using Tapatalk 4

[rage385]

Bump. Any updates?

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[shadowinstallz]

Finally Fixed....


http://forums.vwvortex.com/showthrea...160&viewfull=1

[ducati]

Got my fixed by replacing the N80 and hose.The car runs smoother than before but a slight rough idle at a stop.I replaced the gas cap just in case also.Been 5000km and no code thrown.

[Audi777tom]

I have been throwing the same set of codes.
P0441 :
EVAP Emission Contr.Sys.Incorrect Purge Flow
Fault status : 00100010
Lower limit exceeded
Conditions met
Sporadic
Warning lamp off


P0455 :
EVAP Emission Contr.Sys.(Gross Leak) Leak Detected
Fault status : 01100001
Upper limit exceeded
Conditions met
Static
Warning lamp off

I will try to replace the N80 first and then go through the rest of the system. Thanks for the info everyone, I'll let you know any updates.

[Audi777tom]

This worked! I cleared the codes after the install and a week later they are still gone. Thanks for the info guys.