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Discussion Starter · #1 ·
Just had my MOT and it failed only on emissions, quite badly too. I have a Janspeed backbox and centre pipe and standard cat. The guy said it seemed like there was no cat there, but there is!

Does anyone have a clue what it might be?
 

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Is Constantly Horny
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lol mine just passed with janspeed sports cat u need to warm it up before it goes in and get him to keep it on about 2k for a while, unless your car is overfueling or could be due to many other factors, hole in the exhuast etc?
 

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IN for Mod hate!
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lol mine just passed with janspeed sports cat u need to warm it up before it goes in and get him to keep it on about 2k for a while, unless your car is overfueling or could be due to many other factors, hole in the exhuast etc?
gotta make sure it goes straight in as well..

TBH mine with a Mafnex 5x3 on the back only just passed its emmissions...
 

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Alergic to the apex
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lol mine just passed with janspeed sports cat u need to warm it up before it goes in and get him to keep it on about 2k for a while, unless your car is overfueling or could be due to many other factors, hole in the exhuast etc?
Mine too, failed the first time but just got in by 0.1 whatever it is too. I took it for a right blast before though.

I wonder if you ask the tester if they will do the emissions test first as its usually one of the last testa they carry out....:shutup:
 

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What were the readings from the emissions? i'm a tester and i always do the emissions first!i've had cars fail on lambda readings if they have a large bore tailpipe before due to it picking up oxygen from the probe not going far enough into the exhaust system! it could be you have a small hole in the exhaust system
 

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am i best takin it somewhere to ind out an exact answer then?
Let us know if you want it looking at mate should have brought it to us for test lol
 
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