Took the gti6 for an mot today, failed it emissions
Fast idle test
Co 0.748 maximum should be 0.300
Lambda 1.259 maxim should be 1.030
2nd fast idle
Co 1.117
Lambda 1246
Natural idle test
Co 0.932 should be 0.500

Any idea what can be causing these readings?

Cheers

Pete

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Cherry rallye - DOB Thursday 29/04/1999
Team Rallye - the leaner, meaner, better looking sister of the GTI6

The best engine in the world is the vagina, it takes any size piston, its self lubricating, starts with 1 finger, and every 4 weeks does its own oil change. It's just a pity the management system is so fecking temperamental. 

Which one is the coolant sensor?

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Cherry rallye - DOB Thursday 29/04/1999
Team Rallye - the leaner, meaner, better looking sister of the GTI6

The best engine in the world is the vagina, it takes any size piston, its self lubricating, starts with 1 finger, and every 4 weeks does its own oil change. It's just a pity the management system is so fecking temperamental. 

Cheers matey

________________________________________

Cherry rallye - DOB Thursday 29/04/1999
Team Rallye - the leaner, meaner, better looking sister of the GTI6

The best engine in the world is the vagina, it takes any size piston, its self lubricating, starts with 1 finger, and every 4 weeks does its own oil change. It's just a pity the management system is so fecking temperamental. 

mine were roughly the same readings bottle of petrol magic+a good thrashing = pass

It didn't only fail on emissions though, did it Peety!

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205 rally car with 2.2 hybrid 6 engine: phase 2 engine build underway.

Well it passed it's emissions

I swapped the coolant temp sensor as a precaution, couldn't get the lambda off though! Somebody has tried before and rounded it off, so I think they struggled last time.

The tester (different one to before) asked if it had had a belt recently, I said yes then he bounced it off the limiter a few times, that bought the co and lambda right down!

________________________________________

Cherry rallye - DOB Thursday 29/04/1999
Team Rallye - the leaner, meaner, better looking sister of the GTI6

The best engine in the world is the vagina, it takes any size piston, its self lubricating, starts with 1 finger, and every 4 weeks does its own oil change. It's just a pity the management system is so fecking temperamental.