Emission Dash light on (safe to drive?)

[Keir]

Today the Emission control system light has come on. The manual says :

a fault has developed during driving which has reduced the quality of the exhaust gas (e.g lambda probe fault).

It then goes on to say reduce speed and drive carefully to a qualified workshop.

So am I ok to keep driving as it's going for it's MOT on Monday, and when it was serviced the dude said it'll more than likely need a new cat

 

[Veyron]

Mine has got this and an MOT in the morning! It only comes on when i use Asda petrol though for some reason?

 

[Keir]

Hmm strange, I have made the change from ASDA to Shell mind. lol

yours sounds like a lambda sensor fault if it's intermittent.

 

[Veyron]

I use Shell from now on because i can get some reward points , even if it is only 1% back but the light stays on permanently until it is reset and then stays off until i use asda fuel

 

[Keir]

so odd.

So it's alright to drive round with it on yeah?

 

[Veyron]

so odd.

So it's alright to drive round with it on yeah?

I think so, i've had mine on now for 3 months but we'll see what happens at the MOT tomorrow But the light could be a lot of problems so it's best to get it checked up by someone with Vag-Com. I've ordered one on ebay for a tenner so will see if that shows the fault when i get it

 

[Keir]

Yeah my MOT is on Monday.
Can you hit me up with a link on eBay for VAGcom

 

[Veyron]

http://cgi.ebay.co.uk/USB-OBD-II-Di...iagnostic_Tools_Equipment?hash=item483918a2f2

That's the one i brought , but it seems a bit too good to be true for a tenner. It connects to any windows laptop supposedly. It should be here in the morning because i ordered it wednesday.

 

[Kie183]

I've picked up this emission control light as well, was gunna take it to SEAT for a diagnosis but think i'm gunna wait and see how this vag com wire you got works.
I also got it from changing petrol, went from Shell to esso then it popped on.....

 

[Keir]

Well the car passed it's MOT all emission tests passed.
Light still on though, looks like I'm be getting VAG-COM as well.

 

[Veyron]

Mine passed but he said he just about got through emissions and said its got a problem. I brought Vag-Com and scanned it but it wont mention anything or let me reset the light so i'm unsure if the car is connected properly even though my cable is lighting up?

 

[Keir]

The cable will light up with power thats all, sounds odd anyway.

 

[Veyron]

I've found this guide which i will try now:

http://www.audizine.com/forum/showt...20-eBay-VAG-COM-Cable-Walkthrough-*Revisited*

 

[shox]

I have the same issue. Light goes on half tank, i tanked , light went off.

I tank always at the same benzine station for the past 4 months...

Let me know if you hear anything ! =)

 

[shox]

no updates??

 

[RUM4MO]

I'd reckon that it could be a lambda probe issue - usually the control probe - ie "bank 1 sensor 1" - as its "only" the mixture control probe, if the engine is handling what the ECU is giving it okay without causing emission problems, then the car would pass emission testing "at this time". In my experience, the manu-cat mounted Lambda probe starts to fail intermittantly but eventually does end up having a "hard" fault. Personally, if this is the problem, then I'd suggest that you stick with buying the correct replacement probe from VAG.