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TOPIC: NCT Fail
#30897
NCT Fail 7 Years, 11 Months ago Karma: 6
Hi All,

My 98 Turbo had its first NCT yesterday and failed on Emissions Low Idle CO 6.31(Above 0.50 Fail) High idle Lambda 0.83(not between 0.97 and 1.03 fail) and High idle CO 6.12(Above 0.30 Fail),
So far I’m thinking the catalytic converter is totally bust.What do you guys think,any recommendations on where to get one supplied and fitted and how much I should pay.
Should I be looking for a specific type or are they all the same. Opinions would be apprectiate as Im still new to this and trying to figure out a lot as I go along
Thanks a mill
Jedi Apprentice
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#30899
Re: NCT Fail 7 Years, 11 Months ago Karma: 52
Is it completely stock?
Might be worthwhile checking the o2 sensor on the cat to see if its damaged aswell.

As for getting a new cat,I'd advise a second hand one
dan_ep82
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#30903
Re: NCT Fail 7 Years, 11 Months ago Karma: 213
Yeah - either cat is gone or cat is actually gone - maybe your cat was replaced by a downpipe ?

I was same - put mine through the NCT to see how much it'd be over with a downpipe and was way over like yourself.

Then, I got a hi-flow cat and it passed (same as steelheart, who also passed)

www.mr2.ie/mr2-forum/10-general/20214-pa...-xs-power-sports-cat
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#30911
Re: NCT Fail 7 Years, 11 Months ago Karma: 6
It defo has a cat,got under last night to have a look, everything under their looks so clean and dry and then you see the cat which looks in terrible condition.Will need to have another look at the 02 Sensor.


Thanks for the reply, is this the one I need?

www.xspoweruk.com/3sgte-downpipe-3-high-flow-sports-cat.aspx

If it is I am going to order it today and hopefully have it ready to install for the wkend if delivery is fast.
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#30913
Re: NCT Fail 7 Years, 11 Months ago Karma: 327
Before you spend money have a read of this.

How Two's, emissions

You could just be spending money and still fail the test.

My two sense, for you, free of charge
slipsliderg
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#30967
Re: NCT Fail 7 Years, 10 Months ago Karma: 6
Going to give this how two a try, will let you know how it goes, Thanks a mill
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