MK5 Golf GTI

All Things Mk5 => How to Guides / Troubleshooting => Topic started by: scopes on November 12, 2015, 11:02:37 pm

Title: Fault 001089 - EVAP Emission Control Sys
Post by: scopes on November 12, 2015, 11:02:37 pm: Hi All

This code is from a friend's car, It's a 2005 Mk5 golf GTI, Engine code AXX.

It recently had the charcoal canister replaced, but the fault came back after a short time.

Address 01: Engine Labels: 06F-907-115-AXX.lbl
Part No SW: 1K0 907 115 HW: 1K0 907 115
Component: 2.0l R4/4V TFSI 00 0070
Revision: --H01--- Serial number: VWZ7Z0E2472244
Coding: 0403000318070060
Shop #: WSC 00887 210 89731
VCID: 63C1F9C8A240BA2620-8036

1 Fault Found:
001089 - EVAP Emission Control Sys
P0441 - 002 - Incorrect Flow - MIL ON
Freeze Frame:
Fault Status: 11100010
Fault Priority: 0
Fault Frequency: 5
Reset counter: 255
Mileage: 144118 km
Time Indication: 0
Date: 2000.00.00
Time: 06:24:51

Freeze Frame:
RPM: 844 /min
Load: 18.4 %
Speed: 0.0 km/h
Temperature: 72.0°C
Temperature: 17.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 14.351 V

Readiness: 0000 0000

The engine light stays off for 50 miles then the engine light comes back on, with the same code...

Would like to know a good place to start looking to find the problem ! :fighting:

I Was thinking the N80 valve and surrounding pipework... But without just replacing parts, what way can these be tested?

Thanks
:happy2:
Title: Re: Fault 001089 - EVAP Emission Control Sys
Post by: Shoduchi on November 13, 2015, 02:03:02 am: Are you sure there's no leak in the system? That small hose that returns the gas vapours has a plastic connector to the canister, is it new as well?
Title: Re: Fault 001089 - EVAP Emission Control Sys
Post by: Dan_FR on November 13, 2015, 07:08:28 am: Either a leak or an N80.

Easy way to see if the N80 is working would be to remove the pipe going from it to the charcoal can, run the car and you should be able to hear it working on idle, makes a pop/thumping noise a few times a second
Title: Re: Fault 001089 - EVAP Emission Control Sys
Post by: scopes on November 13, 2015, 10:20:42 am: Quote from: Shoduchi on November 13, 2015, 02:03:02 am
Are you sure there's no leak in the system? That small hose that returns the gas vapours has a plastic connector to the canister, is it new as well?

Yes, i have checked it and all seems to be good.

Quote from: Dan_FR on November 13, 2015, 07:08:28 am
Either a leak or an N80.

Easy way to see if the N80 is working would be to remove the pipe going from it to the charcoal can, run the car and you should be able to hear it working on idle, makes a pop/thumping noise a few times a second

This i will check, :happy2: Should it sound like a clicking noise ?
Title: Re: Fault 001089 - EVAP Emission Control Sys
Post by: Dan_FR on November 13, 2015, 10:32:47 am: You could desribe as a clicking/ticking noise yes, you will hear the noise coming from the end of the pipe.

Describing sounds is not my forte :happy2:
Title: Re: Fault 001089 - EVAP Emission Control Sys
Post by: scopes on November 13, 2015, 10:42:24 am: :happy2: :signLOL:

As far as i'm aware they can also get blocked up with charcoal...
Title: Re: Fault 001089 - EVAP Emission Control Sys
Post by: v4rley on November 13, 2015, 11:10:53 am: Had this issue too. I change the charcoal canister and code still appeard.
I check the N80 using vcds and could hear clicking. I didn't know what else to try so I brought a new one from eBay for cheap less than £15 and not had issues since :happy2:
Title: Re: Fault 001089 - EVAP Emission Control Sys
Post by: Dan_FR on November 13, 2015, 11:14:03 am: If you remove the pipe from the top of the charcoal canister, you should feel the air pulsations as well as hear them
Title: Re: Fault 001089 - EVAP Emission Control Sys
Post by: scopes on November 13, 2015, 11:31:26 am: As far as I know the N80 valves, can also cause a vacuum leak...
Title: Re: Fault 001089 - EVAP Emission Control Sys
Post by: pudding on November 13, 2015, 03:25:14 pm: Had the same. Had to replace the carbon can, the N80 and the line that goes from the carbon can to the tank vent connection near the brake fluid pot and the fault code disappeared.
Title: Re: Fault 001089 - EVAP Emission Control Sys
Post by: scopes on November 13, 2015, 05:54:54 pm: Happy Days, hope it is something striaght forward... Any other suggestions please keep them coming...!

Thanks
Title: Re: Fault 001089 - EVAP Emission Control Sys
Post by: scopes on November 15, 2015, 08:05:18 pm: Removed the N80 valve and was able to blow through it, replaced it with a new one and all seems good, so far...