NCT failed on high idle CO

dreamer001

Guys can you please help I failed my nct for high idle

lamda is pass 0.99
low idle is pass show co is 0.02
High idle is fail 0.45%
HC is 0ppm shows on nct report


Basically is failed high idle 0.45


can some please recommend me mechanic. All of the one i contacted stated different reasons and prices

Dravokivich

you never said, make, model, year, petrol/diesel?

dreamer001

Its 2007 Seat Ibiza 1.2 petrol

rex-x

New cat time

dreamer001

Mechanic said cat and lambda are fix but flexi exhauat pipe is ****ed.Needs a change which might be reason for high emissions.Can anyone pls recommend is that true?So i go ahead and fix it?

dreamer001

Hi Folks,


Previous reading

low idle 0.02 pass
lambda 0.99 pass
high idle 0.45 fail

Now I have cleared nct with no problems

low idle 0.15 pass
lambda 1.01 pass
high idle 0.17 pass


Solutions used

1. Diptane with reide of 20 min on fourth gear before nct
2.Change of flexi pipe


Usually i was told if flexi exhaust is worn or broken nct guy tell you.But they did not tell me.My mechanic found it out.So in near if any fails on emission please check flexi pipe by giving a glance at it instead of wasting money putting cat, o2 and lambda sensor.Start with this its pretty easy.


Hope this helps anyone failing on high idle co emisson.

Thanks

ayux4rj6zql2ph

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dreamer001

Prisoner 6753 wrote: »

This post has been deleted.

Yes limit is 0.20.But atleast sorted for next year.