7 replies to this topic

[Mark1961]

Hi,

 

My mini failed its MOT today (at KWIKFIT) and I urgently need to get it fixed by tomorrow am if at all possible.

 

It failed on headlight adjustment, which I can sort myself but more importantly it failed on CO emissions. Hoping for some simple and cheap advice to resolve without the expense of a new cat. I tried an engine improver after it failed and ran it for 40 mins at high revs up the motorway but it still recorded a fail on CO. Results as follows:-

 

Fast Idle CO: 0.22/HC: 66/Lambda: 0.993

 

Second Fast Idle CO: 0.26/HC: 58/Lambda 0.992

 

Second test after the run was still at CO 0.26

 

Any suggestions would be greatly appreciated.

 

Thanks,

 

Mark

 

 

[samsfern]

I might be wrong, but I'm sure when I was doing mots at my old work, the machine raised the limit to 0.30 for the co, after failing the first fast idle test....

[darkcat]

a quick service might help if its not been done for a while, plugs and air filter are most likely to effect emissions.

[HarrysMini]

Plugs and air filter are definitely worth checking and replacing if necessary. If not, a bottle of Cataclean has never failed me, a bit expensive but it does work. 

 

How does the car run?

[The Matt]

Check the air filter isn't clogged up at all.

[Badboytunes]

Kwif fit????? Id go elsewhere. The engine needs to be really warm for a good reading

[HarrysMini]

Yes, the CAT needs to be hot and fully up to working temperature to work properly. Usually the tester will warm the car up if it fails, but sometimes they don't. 

[Mini 360]

KwikFit.  Go elsewhere and I guarantee it wont be a problem.  Cowboys the lot of them.