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Author Topic: Exhaust warning light - Scanned with VCDS  (Read 3185 times)

Offline robump

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Exhaust warning light - Scanned with VCDS
« 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!
« Last Edit: March 20, 2014, 07:30:42 pm by robump »

Offline doylebros

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Re: Exhaust warning light - Scanned with VCDS
« Reply #1 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)

Offline robump

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Re: Exhaust warning light - Scanned with VCDS
« Reply #2 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?

Offline mistry

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Re: Exhaust warning light - Scanned with VCDS
« Reply #3 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.

Offline robump

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Re: Exhaust warning light - Scanned with VCDS
« Reply #4 on: March 22, 2014, 09:44:33 pm »
Thanks for the replys, where abouts should i start?

Checking the MAF sensor?

Thanks

Offline Teutonic_Tamer

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Re: Exhaust warning light - Scanned with VCDS
« Reply #5 on: April 03, 2014, 10:15:11 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.
Sean - Independant Automotive Engineering Technician (ret'd)
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Offline GLIDN

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Re: Exhaust warning light - Scanned with VCDS
« Reply #6 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.

Offline Teutonic_Tamer

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Re: Exhaust warning light - Scanned with VCDS
« Reply #7 on: April 04, 2014, 09:51:02 am »
There after don't over fill your tank.
Orly?????

Yet another internet myth!
Sean - Independant Automotive Engineering Technician (ret'd)
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07 Golf5 GTI 5dr (BWA), DSG, colour coded, Revo, WALK, WL ARBs, 235 PS2s, seat drawers, OEM tints, custom/hybrid engine mounts, Audi-esque soundproofing

~~ free official Golf V factory workshop manuals ~~