Peugeot 406 (1996 - 1998) - 1997 2.0 petrol - failed MOT on emissions

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Wed 14 Nov 2007 07:53
1997 2.0 petrol - failed MOT on emissions - duggie
Our pug 1997 75k 406 2ltr petrol failed mot on emissions yesterday, cat is in good condition as is the exhaust, air filter was changed not so long ago with oil and filter, any ideas to getting the emissions down? i took it for a blast down the motorway before the test to get it nice and hot.
Duggie

{Subject header amended to include yr, engine size, and the related problem}

Edited by Dynamic Dave on 14/11/2007 at 10:17

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Wed 14 Nov 2007 08:10
failed MOT - pmh
Before anybody else says it.....

What were the readings and exact reason for failure??????
--

pmh (was peter)


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Wed 14 Nov 2007 18:40
failed MOT - duggie
Hi, the readings were co level 0.48% (max 0.2) Lambda 1.09% (max 1.03).


Cheers. Duggie
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Thu 15 Nov 2007 12:42
failed MOT - Chris S
If the CO is high then it might be burning oil.
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Thu 15 Nov 2007 15:07
failed MOT - Saltrampen
I thought burning oil would also give a high HC reading as well - or would the catalyst soak this up?
I also thought that High CO can often be dealt with by retuning or checking faults with the fuel system / timing.
I am surprised the MOT garage did not advise on possible remedies.



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Thu 15 Nov 2007 14:39
1997 2.0 petrol - failed MOT on emissions - Screwloose
duggie

Are you any good with a multimeter and can you get your hands on a laser thermometer that will read up to 250c?
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