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Exhaust Emission Warning Light. should I worry?

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#1
BraveStarr

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Hello!  

Bought me a R32 mkIV yesterday.
:D

today driving home from work, the Exhaust Emission Warning Light, lighted up. not blinking.
Engine running fine, no missfires.

turned the vehicle off. and started again. the light didn´t dissapear.

a couple of hours later I disconnected the batteri for one hour.
And when I connected the battery again and started it, the up warning light went out.

I´m going for a short ride soon, and hopefully the warning light won´t come on again..

BUT do need to worry about this?

#2
defianty

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Have search on the forum mate. It's a common problem. Mine turned out to be a temperature sensor. Best to get in linked up to a VAG COM and see what the error is.

I drove mine for a few days and then started running a bit bad. The sensor was less than £30.

Good luck

Stephen
'04 MKIV R32 Indigo Blue
'73 Porsche 914 2.0

#3
16vTej

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yeah i had mine come on a week ago... was the coolant temp sender... not too bad to change at all and only £25ish from VW

#4
BraveStarr

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I installed a Typhoon K&N kit.

is it possible to see the error code anyway? One connector is disconnected due to the kit.
And I heard that it will be some error codes due to that.

#5
GazJones@VACS

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what sensor is disconnected? ive had the light come on twice for 2 different reasons. one time was due to my cats being for the want of a better word fuc**d and secon as said before temp sensor
HGP 460 TURBO MK4
www.vagautocareservices.co.uk
R32 Full service inc haldex oil and filter £200
Vag Com/ Vag Tacho, Alarm bleep auto locking, Miles to empty Lit needles enabled

#6
Mattchaps

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I too have had it come on due to the temp. sensor.... it was on for a few days, then went off for a week, then came back again.

VAG COM will tell you for sure.

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#7
thisnamesux

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mine went into vw last week for this very error....
mine was temp. sensor... but also (don't want to worry people) the timing chain had stretched.
its goin back next week to get changed over... this can also cause the light to come on.

#8
blackpug

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BraveStarr said:

I installed a Typhoon K&N kit.

is it possible to see the error code anyway? One connector is disconnected due to the kit.
And I heard that it will be some error codes due to that.

I've a typhoon too. This plug goes onto an engine breather solenoid. The hose to this should be connected straight to the typhoon pipe. Won't give an error.

#9
BraveStarr

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ty all!!

I went to a mechanic and hooked it up to a computer.

missifring on cyl 4,5,6
lambda1

reseted the errors, started it up for 1 min.
no error codes

why?

I should mention that the car has been still over the last winter in a garage with the temperature of a normal home. All fueled up.

maybee the old fuel could be the problem?

#10
GazJones@VACS

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or you have some coil packs on the way out thats why its not sparking properly leaving unburnt fuel passing through exhaust and lambda sensors are picking it up
HGP 460 TURBO MK4
www.vagautocareservices.co.uk
R32 Full service inc haldex oil and filter £200
Vag Com/ Vag Tacho, Alarm bleep auto locking, Miles to empty Lit needles enabled

#11
BraveStarr

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Yeah!
It´s more likely to be the coilpacks.

I´m going to look the price up at a retailer.



Is it a difficult procedure to remove and reinstall the coilpack?

#12
andysR32

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Think they are about £20 each,should take about 2 mins to change,just disconnect the wiring plug and then pull them out.They can be a bit stiff sometimes so you may need to pull it quite hard.

#13
16vTej

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id say leave it for a while... could possibly be moisture build up if the car's not driven for a long time

a good drive that get's some heat into the engine will help alot to not only clear out moisture around the engine but also from within

#14
BraveStarr

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TY again!

Is it possible to order these from England?
Live in Sweden and 1 coilpack is about 40£ here
and if I still have the problem I have to order three of them.

myabee Ill save 40 £ or so.



EDIT:

My english isn´t so good.    is Coil Pack and Ignition coil the same thing?



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#15
BraveStarr

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or maybee from the US?
Dollar is low value now

#16
16vTej

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yes the ignition coil is the same thing as coil pack

would it be cheaper direct from Germany? that's where they are made i think

#17
BraveStarr

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Hmm maybee.

Do you know any webshop in UK / US or Germany?

I´m going to order all six of them. and change them.

#18
BraveStarr

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??

#19
MoJo

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www.eurocarparts.com
www.vagparts.co.uk

#20
BraveStarr

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Linked it up with vagcom now..

It said    Too high signal from coolant temp sens.

plus signal from lambda.

What happens when the coolant temp sens is running bad?

#21
andysR32

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Hi mate,the coolant temp sensor is a common fault on VW's,but a reasonably cheap part to replace.You may have the green one which was early fitment,and now changed to black I think which is better.Think they are about £7 in uk so not to bad.As for lambda you're looking at about £100 in the UK but there are 4 of them 2 before and 2 after the cats.
Hope this helps.

#22
GazJones@VACS

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andy its other way round with temp sensors, black was early the green to fix the problems, cost me about 30 quid all in for sensor seal and new clip. then new anti freeze top up. but the temp sensor might be causing a fueling problem thats throwing up the lambda sensor fault.
HGP 460 TURBO MK4
www.vagautocareservices.co.uk
R32 Full service inc haldex oil and filter £200
Vag Com/ Vag Tacho, Alarm bleep auto locking, Miles to empty Lit needles enabled

#23
andysR32

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Cheers Gaz thought it was something like them colours just couldn't remember quite what.:confused:

#24
Macdaddy©

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I ordered the Green upgraded sensor and fitted it just incase.

The last time my emmisions light came on it was coilpacks, but the car ran like crap too.
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www.audirs3oc.com

#25
BraveStarr

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Is this the right partnr?

1J0959481A


well actually I´ve been reacting over the fuel consumption. I think it eats gasoline like h*ell
And thats even when im driving to work. no hard driving. just cruising.

maybee its the coolant temp sensor causing this.

or maybee the car has this consumption ;)


(the car runs good, when I hooked up through a vagcom there were no missfiring error)




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