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Old 6th June 2019, 06:47 AM
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Green Goblin Green Goblin is offline
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Default Well well well. EML & MOT failure rules

I’ve learned something. Something big...

But first, a massive thank you to Delboy for clearing my codes and resetting my EML! Top bloke and you have a seriously gorgeous D3 S8 buddy! I wasn’t jealous at all...

As I previously explained - the lambda sensors were throwing a hissy-fit due to that crazy cat Goran and the crazy cats he had fitted (note: I’m being sarcastic with a hint of humour thrown in). World class HJS 100 cell cats mated to a full custom Hayward & Scott exhaust. It sounds absolutely epic and makes the old girl sound like a full-on NASCAR but caused the EML to illuminate (oh dear, I went all Wesley Snipes in Demolition Man there). “Illuminate...”

Knew about the recent changes to MOT rules regarding the EML so I just prayed it would stay off just long enough to get the old girl through. Journey back home from Delboy’s was fine. Next morning...arghhhhhhhhhh...damn light comes on just before I get to Halfrauds Autocentre

Here’s the interesting (and ironic) part: firstly, yes, the car *did* fail. But not on the EML! It was a split (or loose) CV rubber boot. That’s all. It turns out that it’s only a failure for petrol cars registered from 01 July 2003 onwards and diesel cars 01 July 2008 onwards only! My car is 2001 so the EML is just advisory. And, the emissions were *absolutely spot on*

Phew...and the MOT only cost a tenner
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Last edited by Green Goblin; 6th June 2019 at 07:01 AM.
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Old 6th June 2019, 07:10 AM
MikkiJayne MikkiJayne is offline
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Deluminate

I did not know that about the EML. I always reset mine as I drive in to the test centre as it comes on with every other startup :P

Have you tried O2 sensor spacers? They supposedly help with this sort of thing although I've not tried them myself.
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Old 6th June 2019, 07:25 AM
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Green Goblin Green Goblin is offline
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Quote:
Originally Posted by MikkiJayne View Post
...have you tried O2 sensor spacers? They supposedly help with this sort of thing although I've not tried them myself.
Gonna try this approach next. I keep reading about using spacers for the sensors. A reputable exhaust place should be able to do this.
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Old 6th June 2019, 07:52 AM
MikkiJayne MikkiJayne is offline
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Any garage should be able to do it really. Its just a case of unscrewing the sensors and putting the spacer between them and the exhaust. Right-angle spacers would be prudent as there's not a lot of room between the top of the sensors and the tunnel / propshaft.
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Old 6th June 2019, 03:38 PM
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Goran Goran is offline
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Sorry about all the trouble those crazy cats caused
Glad you passed despite the engine light.
By the way you already have top quality spacers on those rear labmbdas.
So I guess the next step is either get a VCDS cable so you can re-set the light yourself, or pay MRC Tuning to code out the error code. They don't remove the rear lambdas for some reason, I guess it would require a more major re-code because they are looked for during the start-up routine. Maybe they can do that but that may cost more money, then you can ditch those lambdas completely.

You have these ones, Wayne Angle blocks

https://www.audiworld.com/forums/a4-...s-yay-2376477/



You could try spark plug anti-foulers on top of the Wayne blocks to move the lambdas out further?
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Last edited by Goran; 6th June 2019 at 03:50 PM.
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  #6  
Old 6th June 2019, 04:29 PM
Markiii Markiii is offline
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pair of these might helps

https://www.ebay.co.uk/itm/90-Sensor...item4b612a1860
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Old 13th June 2019, 11:04 PM
HPsauce HPsauce is offline
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Quote:
Originally Posted by Green Goblin View Post
yes, the car *did* fail. But not on the EML! It was a split (or loose) CV rubber boot. Thatís all. It turns out that itís only a failure for petrol cars registered from 01 July 2003 onwards and diesel cars 01 July 2008 onwards only! My car is 2001 so the EML is just advisory. And, the emissions were *absolutely spot on*
I wonder what would happen with mine then if the EML was on?
It's a D2, built in April 2002, but was first registered in October 2003...Ö
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.).
2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (A much rarer model than a D2 S8 by the way!)
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1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors.
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