MK5 Golf GTI

All Things Mk5 => Modifications & Technical Area => Technical Workshop => Topic started by: robump on March 20, 2014, 07:21:50 pm

Title: Exhaust warning light - Scanned with VCDS
Post by: robump on March 20, 2014, 07:21:50 pm

Hi everyone,

My exhaust warning light came on the other day and have plugged it into a VCDS and got the following report:

Code: [Select]

008584 - Bank 1; System too Rich at Idle
               P2188 - 008 -  - MIL ON
             Freeze Frame:
                    Fault Status: 11101000
                    Fault Priority: 0
                    Fault Frequency: 6
                    Reset counter: 255
                    Mileage: 98243 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 22:08:48

             Freeze Frame:
                    RPM: 1077 /min
                    Load: 15.7 %
                    Speed: 36.0 km/h
                    Temperature: 75.0°C
                    Temperature: 21.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 14.224 V

001089 - EVAP Emission Control Sys
               P0441 - 002 - Incorrect Flow - Intermittent
             Freeze Frame:
                    Fault Status: 00100010
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 98926 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 22:06:46

             Freeze Frame:
                    RPM: 755 /min
                    Load: 26.3 %
                    Speed: 0.0 km/h
                    Temperature: 73.0°C
                    Temperature: 20.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 14.097 V
Does anyone know what might be causing it?

Also I'm not sure whether i have put this in the right forum!

Title: Re: Exhaust warning light - Scanned with VCDS
Post by: doylebros on March 20, 2014, 07:44:42 pm

Noticed this but what mods you got?

 P2188=ECM-262A Long-term fuel trim Lower limit
Condition

The control module receives information from the heated oxygen sensor (HO2S) about the fuel / air mixture when idling at both the lower and upper part-load range. If the fuel / air mixture deviates from λ=1, the short-term fuel trim will compensate for this by adjusting the injection time so that λ=1 is achieved. When the short-term fuel trim makes an adjustment, the integrator median must be adjusted by the long-term trim. Diagnostic trouble code (DTC) ECM-262A will be stored when the long-term trim must be adjusted almost to maximum in the idle range.


Substitute value
none


Possible source

Upper limit:
-intake air leakage
-exhaust system air leakage
-defective heated oxygen sensor (HO2S)

Lower limit:
-intake air leakage
-high fuel pressure
-leaking injectors
-defective mass air flow (MAF) sensor
-contaminated engine oil
-oil level too high
-defective heated oxygen sensor (HO2S)

Title: Re: Exhaust warning light - Scanned with VCDS
Post by: robump on March 20, 2014, 10:59:29 pm

Thanks for the reply,

I dont have any mods, car is stock. (boring i know!)

I dont know if it applies but i have notices that it splutters sometimes when i start it up which is a bit unusual, i will try and film it so i can upload a video of it doing it.

Would this indicate any of the things you mentioned?

Title: Re: Exhaust warning light - Scanned with VCDS
Post by: mistry on March 21, 2014, 09:49:19 am

I had the same light come up and my car was idling a little rough. I found it was the PCV Valve. it's quite easy to check and replace if need be. 

Sorry can't help with reading the logs though.

I've now got the problem of the car running fine but the light still stays on, I'm not sure if it will clear itself or I need to get the codes cleared.

Title: Re: Exhaust warning light - Scanned with VCDS
Post by: robump on March 22, 2014, 09:44:33 pm

Thanks for the replys, where abouts should i start?

Checking the MAF sensor?

Thanks

Title: Re: Exhaust warning light - Scanned with VCDS
Post by: Teutonic_Tamer on April 03, 2014, 10:15:11 pm

Quote from: robump on March 22, 2014, 09:44:33 pm

Thanks for the replys, where abouts should i start?

Checking the MAF sensor?

Forget the MAF.  Check the pipework to your PCV, and the actual PCV itself.

If it was the MAF, then other additional codes would be stored.

Title: Re: Exhaust warning light - Scanned with VCDS
Post by: GLIDN on April 03, 2014, 10:34:22 pm

replace PCV and PCV gasket,

Additionally you also have the P0441 error.
Replace your N80 valve and the superseded hose as well.
There after don't over fill your tank.

Title: Re: Exhaust warning light - Scanned with VCDS
Post by: Teutonic_Tamer on April 04, 2014, 09:51:02 am

Quote from: GLIDN on April 03, 2014, 10:34:22 pm

There after don't over fill your tank.

Orly?????

Yet another internet myth!