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The mkiv Supra Owners Club

My CO Emissions


mark newman

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Today i had to go and have thr MOT done. Al was well apart from the CO emissions and lambda. My CO emission is 9.56%vol and my labda is 0.76. Both failed so what do i do? Will one cat reduce this so it will pass?

 

Thanks

 

I assume the C was missing? I don't think @'s will make a difference tbh ;)

 

I have 1 cat on my single - not quite the monster yours is but it just passes when it's hot :)

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Paul Whiffin custom welded the 2 OEM cat pipes to the same structure than my PHR 3" mid and downpipe combo, plus a V-Band connector on one side. So I can switch from one to the other easily for MOT tests.

I have to admit that even with cats, I don't pass MOT emission tests over here (0.5 % CO limit). My CO is around 3% with cats.

I have to lean out the mixture at idle before the MOT emission test. With that, plus the cats, I get it down to 0.38 % CO.

 

Here 2 pics of the cats Mark

 

image

 

image

 

Cheers

 

Luc

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