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Dub4life View Drop Down
Yardie
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    Posted: 06 Aug 12 at 18:50
Hi Guys, not been by in a while! So I have had the warning lamp come on for the exhaust gas? What are my options? I've had a look underneath at the exhaust and no obvious damage or holes. No extra noise. However, I did go over a plastic coke bottle on the M1 the other night and it did whack underneath. Can this warning lamp be reset? Will I have to get a vagcom diagnosis?

Any help would be much appreciated, I tried a search on this but not much came up.

Dub4
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Points: 2517 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Alonline Quote  Post ReplyReply Direct Link To This Post Posted: 06 Aug 12 at 19:40
What wagon are you running. T5 or T5.1?
 
I would check the sensor wires down onto the exhaust at eh back of the engine.
 
I suspect a T5.1 as the under shield would have protected most things on  the T5.
 
Would the light be the DPF?
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Dub4life View Drop Down
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It's a T5 (2006) 1.9 108, no DPF. Yes the T5 has a belly pan so it's pretty well shielded engine end.
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Check and clean the connections and if that don't work a new sensor or gamble on the stealer???
 
The new and ripped off T5.1 doesn't get under belly protection.
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Dub4life View Drop Down
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Thanks, a little guidance to exactly where the sensor is? Does it unclip to clean? 
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Originally posted by Dub4life Dub4life wrote:

Thanks, a little guidance to exactly where the sensor is? Does it unclip to clean? 

You don't have one if you definitely don't have a DPF.........
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Dub4life View Drop Down
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OK, so why have I a light on? Is there a sensor at all, I suppose there must be if there is a warning light on? An exhaust pressure sensor maybe?
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Out of curiosity, are your brake lights still working?
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Dub4life View Drop Down
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Yes. This is very frustrating. At first I thought this icon was engine management, had a bit of knee jerk reaction and got booked into a dub specialist tomorrow for a diagnostic. Not sure it's going to need it now?
I think for piece of mind though it wouldn't be a bad idea. I don't mind a dabble underneath the van but this is probably a bit to far for me. I best let someone who knows take a look.
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Perfect time buy either a VagCom cable for about 7 quid or a hand held code reader for about 16 quid....waaaaay cheaper than paying a garage to tell you the fault code plus you can then read any future fault codes without guessing what's wrong.
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I had a vague idea that some non-dpf engines might have still had a sensor in the exhaust - lambda probe possibly to measure oxygen level ?

The DPF versions have an extra two pressure sensors - one before and one after the DPF to tell when it is getting clogged.


Edited by gregozedobe - 07 Aug 12 at 03:30
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Dub4life View Drop Down
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Originally posted by Steve B Steve B wrote:

Perfect time buy either a VagCom cable for about 7 quid or a hand held code reader for about 16 quid....waaaaay cheaper than paying a garage to tell you the fault code plus you can then read any future fault codes without guessing what's wrong.

 
Where can I get one? eBay?
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Dub4life View Drop Down
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By the way, will a code reader tell me a fault code for the exhaust gas warning? Does it run through the ECU too?
The Lambda probe, anyone know it's location? I would presume just after the manifold on the main down pipe?
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Originally posted by Dub4life Dub4life wrote:

Originally posted by Steve B Steve B wrote:

Perfect time to buy either a VagCom cable for about 7 quid or a hand held code reader for about 16 quid....waaaaay cheaper than paying a garage to tell you the fault code plus you can then read any future fault codes without guessing what's wrong.

 
Where can I get one? eBay?


Yes.
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Dub4life View Drop Down
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Ahh ok I see the cables, but the software? I only have a macbook these days. Does it need PC? I could borrow a laptop.
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Dub4life View Drop Down
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TPS reckon there is only one sensor on my exhaust, the lambda probe just in front of the CAT. £134.28 plus vat!!!
Any tips...
Do you reckon I should just get it checked out or just bite the bullet and change it? I'll do it myself if I can.
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If you install Windows7 it will work but in this instance you might be better off with a hand held reader.

Garages charge £35+ just to read and delete the codes....you can do the same for yourself(and anyone else you know)for £16....no brainer really.
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Dub4life View Drop Down
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K, Ta. I'll update you when I'm sorted! Thanks for your help guys!
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Oh...don't be tempted to buy a code reader cheaper from Hong Kong or China as you could end up paying more than what they're available here for due to the import duty.
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Strange one that Dub.  My 04 non-DPF has a cat but no sensors.  I'm not sure the dash on mine even has a warning light.  Are you sure it doesn't have a DPF?  Your van is right on the change over.  What is your engine code?    
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