mot emissions and cat help please
Turbo Mini Forums

Hi all
I have a 1993 mini sprite. Originally was a 1275 with a cat. Now the car is almost done I'm worried about emissions. It no longer has a cat.
Will I need to put a cat on it and how can I get the emissions down to pass.

Cheers

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=462092

This is the bit you may be interested in:-

If the engine fitted is an older engine, emissions may be tested to the data the engine relates to. It is up to the person presenting the car to the Tester to to prove the engines age and identity.

Either way, the emissions test is carried out to whichever is oldest, the car (VIN checked against VOSA In service data) or the engine (up to you to provide valid proof of engine identity and age).




To summarise.

Any Mini pre 1st August 1992 there should be no reason it will not pass an MOT emission test.

Any Mini Post 31st July 1992 will require the MOT Tester to ensure he is carrying out the correct test by following the procedures laid out in the VOSA MOT Inspection manual, also reffering to the VOSA In Service Exhaust Emission Standards For Road Vehicles, or following the MOT analyser computer's instructions (it is this that the monkey either doesn't know how to, or just can't be bothered to, wich can lead to an unjustified fail). If you read the above information for 92 to 95 cars carefully, you can see a loop hole, since if emissions fail on the 'BET test', and the VIN does not match the vehicle specific data, the Tester should use the 'Non CAT test' data. Any Mini in this catagory should have no reason to fail the 'Non CAT test'. Remember that if the car is tested with a 'CAT test', the catalytic converter MUST be present. It would likely fail without the cat anyway in that case.

If something is worth doing, it's worth doing half of.

As above, shouldnt have a problem getting it under 3.5
Is it injection or carb?
either way new plugs & warm her up red hot before you get there


also dont go to kwikfit/halfords/etc. as theyre out to fail

Edited by Will on 10th Aug, 2016.

1993 sprite will be a carb model. Test should be done on a non cat test at 3.5%CO / 1200ppm HC.

All the information in the link above comes from the VOSA documentation.